List of Sonic X episodes

This is the media and release information for Sonic X.

Episode 1: Chaos Control Freaks
''Japanese Title: Chou Onsoku Hero Toujou! (Enter the Supersonic Hero!)''

Sonic the Hedgehog busts into Dr. Eggman's base to stop him from using the Seven Chaos Emeralds and saves two of his friends, Cream the Rabbit and Cheese the Chao. He screws up though, and Chaos Control sends everyone to another world. Sonic is confused by his surroundings. People are stunned at seeing a blue hedgehog. They all try to catch him but Sonic's too stubborn and quick for them. So anyway, Sonic goes off and runs from the police. He then encounters Sam Speed and the S-Team! Sam Speed tries to catch Sonic but he's too quick for him! Now Sonic is even toying with them, exceeding 300mph...in reverse! Sam has no choice but to use his Super Nitro. But even at 500mph, Sonic is able to leave the S-Team in his dust.

However, Sonic is unable to stop himself before he goes off the end of an unfinished overpass. His speed is so great that he actually soars for awhile, looking down at all the beautiful sights. Eventually, he starts to fall, but fourtunately something is below him...a pool! He falls in and starts drowning, not able to get up! Luckily, he is saved by Christopher "Chris" Thorndyke, who is shocked that Sonic can talk so they become friends.

Episode 2: Sonic to the Rescue
''Japanese Title: Sennyuu! Area Kyuu-zyuu Kyuu (Infiltrate! Area 99)''

Sonic has unofficially taken residence at Chris' house. Chris is a young boy, whose family is rich. While Chris and Sonic are watching TV, Chris' grandfather, Chuck, walks into the room and discovers Sonic. Almost taken apart by Chuck, Sonic flies out of the way to the other side of the room. Sonic then hears on the TV that Cream and Cheese were found. Chuck sees this and agrees to help Sonic find his friends. Cream and Cheese have been taken to Area 99; a top-secret military base. It is very high security, so Chuck gives Sonic an infrared scope to find his way around. Sonic finds Cream and Cheese in a lab being tested. He breaks them out, but then the security cameras catch him and start firing their lasers at them. After the cameras' lasers destroy about half of the base, Sonic hears a noise outside. It's the Tornado! Sonic bolts out the wall and lands on the Tornado, and they all fly back to Chris' house to reunite.

Episode 3: Missile Wrist Rampage
Japanese Title: Dr. Eggman no Yabou (Dr. Eggman's Ambition)

Knuckles and Amy are scouring the sewers trying to find a way out. Meanwhile Eggman hatches a plan to take over this new world with a giant robot named Missile Wrist, but Knuckles is too stubborn to care about it. It's up to Tails, Cream and Chris to stop this disaster until Sonic arrives. Amy finally finds Sonic and she takes residence with the Thornydykes after Missile Wrist is defeated. Knuckles declines and heads off for the forest. This episode perhaps is the most violent one to date due to numerous presumable deaths examples are: a beach full of people being completely destroyed, a massive force of police officers being burned by a heat ray (although, their was at least one survivor, yet a burned body could be seen in the distance), and a building being abruptly destroyed with many people inside.

Episode 4: Chaos Emerald Chaos
''Japanese Title: Chaos Emerald wo Te ni Irero! (Get the Chaos Emerald!)''

Chris finally learns about Chaos Control from Sonic, Amy, Tails and Cream. A Chaos Emerald appears in a construction site and machines go haywire. Meanwhile Chris gets a new teacher named Mr. Stuart who is always following Chris around. Eggman is determined to find the emerald, and so is Chris. Eggman "hatches" a giant bird robot, and Amy and Tails use the Tornado to snatch the Emerald while Sonic destroys the robot. Mr. Stuart follows Chris to the Chaos Emerald in his car, and he is revealed to be an agent. At the Thorndyke residence, everybody celebrates on the collection of a Chaos Emerald.

Episode 5: Cracking Knuckles
''Japanese Title: Gekitotsu! Sonic vs Knuckles (Clash!! Sonic vs Knuckles)''

Knuckles is sitting a dark alley and Eggman tricks him into believing that Sonic is trying to keep Knuckles from going home. Knuckles' rage takes over him and he goes after Sonic. Amy informs Chris and Tails of a Chaos Emerald in Silver Valley and they take the train after Sonic declines an invitation. When nobody finds the emerald, they settle for a picnic and Eggman's robot attacks. Sonic meets up with Knuckles and they begin to fight. Tails defeats the robot and Sonic and Knuckles continue to battle. Knuckles finally figured out that Eggman tricked him and he takes care of Eggman. Knuckles goes his own way once more with protest from Chris and Amy.

Episode 6: Techno Teacher
''Japanese Title: Nessen! School Wars (Fierce Battle! School Wars)''

Eggman is enraged after being beaten 3 times. So he plans to brainwash the kids so their parents worship him by sending out the robot "Intelligente" to replace Mr. Stuart. The robot does well in pleasing the kids. Mr. Stuart is enraged and calls the cops. Intelligente acts kind towards the kids, but when Eggman arrives, he reverts to his evil programming. All the kids are trapped outside by Intelligente and are forced to draw Dr. Eggman. Sonic arrives and attacks Intelligente. Intelligente is destroyed and Chris heads home with Sonic. Chris' parents appear for the first time.

Episode 7: Party Hardly
''Japanese Title: Daikonsen! Chris no Home Party (Giant Free For All! Chris' House Party)''

Cream is forced to stay inside and gets upset. Chris' mom suggests a dinner party and invites Chris' uncle Sam (from the Speed Team). Stuart invites himself to the party by Chris' surprise. Cream causes another mess in the kitchen by accident before escaping. Mr. Stuart and Sam Speed arrive for the party. Chris' mother leaves for some reason and Chris calls her rude. Cream remembers her mother and bursts out of hiding and yells at Chris. She runs away and Chris explains to Ella the maid and Tanaka the butler about Sonic and co.

Episode 8: Satellite Swindle
''Japanese Title: Kinkyuu Hasshin! X Tornado (Emergency Launch! X Tornado)''

Eggman launches his Super Sweeper robot to suck up satellites and turn them into robot parts. Sonic and Tails try to stop the Sweeper, but Tails' Tornado plane is overwhelmed. To defeat the Super Sweeper, Tails teams up with Chuck to build the X Tornado, a plane powered by the gang's Chaos Emerald.

Episode 9: The Last Resort
Japanese Title: Nagisa no Amy (Amy on the Beach)

Amy, Cream, Cheese, Tails, and Chris go to the beach for a day off, but Sonic goes for a run. Amy daydreams about Sonic, and after seeing some lovers on the beach decides to make a necklace out of shells to protect him from drowning. Eggman ruins her plans by showing up at the beach and wrecking the resort, luring Sonic to where he will be weakest.

Episode 10: Unfair Ball
''Japanese Title: Gekitou! Sonic Yakyuugun (Fierce Fight! Sonic Baseball Team)''

Tails locates another Chaos Emerald at a baseball field, but Eggman shows up to claim it. To settle the dispute Sonic, Tails, Knuckles, and the others face Eggman's team of baseball robots.

Episode 11: Fly Spy
Japanese Title: Utsukushiki Kaitou Rouge (The Beautiful, Mysterious Thief Rouge Arrives)

The government plans to defeat Eggman by making a deal with Sonic, but the false Chaos Emerald story they start brings in Rouge the Bat instead. Teaming up with a special team of agents, Rouge infiltrates Eggman's base, planning all the while to steal the Chaos Emeralds.

Episode 12: Beating Eggman, Part 1
''Japanese Title: Eggman Kichi Sougeki! BEFORE (Before the Attack on Eggman's Base)''

The President declares war on Eggman, launching a full aerial and naval attack on his base. While Knuckles sneaks aboard one of the planes, Rouge sneaks into Eggman's base once more, and Sonic and co. discover another Chaos Emerald. However, they find themselves at the mercy of Eggman's Funfun robot.

Episode 13: Beating Eggman, Part 2
''Japanese Title: Eggman Kichi Sougeki! AFTER (After the Attack on Eggman's Base)''

Rouge and Knuckles team up inside Eggman's base to escape, while Sonic confronts Eggman's robot Funfun. Eggman escapes with the new Emerald, and uses it in his new robot Guerra-Hard with his other Emerald. Sonic shows up, seeking to infiltrate Eggman's base.

Episode 14: That's What Friends Are For
''Japanese Title: Eiyuu Sonic wo oe! (Chase After the Hero Sonic!)''

Following Eggman's defeat, Sonic is invited to a party by the President, but he declines to take his new friend to an island. However, Jerome Wise, the President's advisor, won't take no for an answer, and sends agents to pursue Sonic.

Episode 15: Skirmish in the Sky
''Japanese Title: Idouyousai Eggfort Shuurai! (Raid of Eggfort, the Flying Fortress!)''

When Ella takes Sonic's friends out to go shopping, they witness the reappearance of Eggman and his new Egg Fortress. Sonic then has to stop Eggman from destroying Station Square.

Episode 16: Depths of Danger
''Japanese Title: Mezase! Nankai no Chinbotsusen (On Sight! The Sunken Ship in Southern Sea)''

Sonic and co. discover another Chaos Emerald underwater, but Eggman figures out where it is too. Sonic faces off against Eggman's bot Klarken and almost drowns!

Episode 17: The Adventures of Knuckles and Hawk
''Japanese Title: Knuckles! Ikari no Tekken (Knuckles! Clenched Fists of Anger)''

Knuckles goes to meet Hawk, a human he met who claims to have a Chaos Emerald. However, Knuckles must contend with several mobsters first, and then the threat of both Rouge the Bat and the robot E-91: the female ninja.

Episode 18: The Dam Scam
''Japanese Title: Savanna no Daikettou! (Huge Shootout on the Savanna!)''

During a battle with the Egg Fort, the X Tornado is shot down. They find themselves at the site of a new dam, but its building will harm the local wildlife. While Tails and Chris try to stop the dam completion, Sonic takes on a robot that can turn invisible.

Episode 19: Sonic's Scream Test
Japanese Title: Kojou no Bourei King Boom Boo (Ghost of the Old Castle, King Boom Boo)

When Sonic and co. go to visit Chris' mother at a creepy old castle, they encounter an army of evil ghosts, led by King Boom Boo who begins trapping everyone in an alternate dimension.

Episode 20: Cruise Blues
''Japanese Title: Shutsugeki! Egg Fort II (Departure! Egg Fort 2)''

Sonic and co. go out on a yacht to see glaciers, but Sonic is not happy about it. When a helicopter comes he assumes it is his ride home, but it is Tanaka with a bunch of senior citizens there to teach everyone how to relax. After several attempts to coerce Tails and Amy, Sonic must contend with Eggman's new Egg Fort 2.

Episode 21: Fast Friends
''Japanese Title: Speed Shoubu! Sonic vs Sam (Speed Match! Sonic vs Sam)''

Chris' Uncle Sam wants to race Sonic, but Sonic isn't interested, even with Sam's new rocket engine in his car. After constant pestering and a threat by Eggman, Sonic gives in, and challenges Sam.

Episode 22: Little Chaos Lost
Japanese Title: Natsu Yasumi - Chao~ na Kansatsu Nikki (Summer Vacation Chao Observation Diary)

While on a hiking trip in Japan, Sonic and co. lose Cheese. When they find him again, they discover a Chao colony. However, the place is put in danger when Eggman, also hiking in the vicinity, shows up with a new robot, thinking that the gang is there in search of a Chaos Emerald.

Episode 23: Emerald Anniversary
''Japanese Title: Daikonran! 6 Chaos Emerald (Mayhem! 6 Chaos Emeralds)''

Chris' dad buys a ring for his wife, unaware that it's actually a Chaos Emerald. Things go from bad to worse when Sonic and co., Knuckles, Rouge, and Eggman all show up looking for the Emerald.

Episode 24: How to Catch a Hedgehog
''Japanese Title: Bousou Sonic! Hokaku Daisakusen (Wild Sonic! Strategic Capture Operation)''

While fighting a robot, Sonic accidentally gets a microchip stuck in his ear. When the chip receives a signal from Tanaka's car remote, it causes Sonic to start running nonstop. The gang then attempts to catch him, resulting in several badly planned attempts involving assistance from Knuckles and Sam.

Episode 25: A Dastardly Deed
Japanese Title: Saigo no Chaos Emerald (The Last Chaos Emerald)

With one Chaos Emerald left to find, everyone makes their plans. While Sonic and co. continue to search for the Emerald, Eggman decides to rely on his robot Lucky, a clumsy robot covered in good luck charms. Knuckles, meanwhile, plans to make a temporary alliance with Eggman so he can get back home. Chris agrees with his plans, and joins him in meeting Eggman. Eggman then tricks them into bringing him their Chaos Emeralds, after which he disposes of Knuckles and then sets out to rendezvous with Lucky, who has the last Chaos Emerald.

Episode 26: Countdown to Chaos
''Japanese Title: Tanjou! Super Sonic (The Birth of Super Sonic)''

With Chris as his prisoner, Eggman goes out to meet Lucky who has found the final Chaos Emerald. However, Eggman comes under attack by Sonic and several government robots. Unwilling to be pushed around, Eggman transforms the Egg Fort 2 into the Eggsterminator and gives it the power of his six Chaos Emeralds. The government robots are destroyed, and Sonic starts to get pulverized by the super fast robot. Chris, unable to bear the sight, breaks free of his restraints and grabs the Chaos Emeralds, jumping out the window. He is caught by Rouge, but the Chaos Emeralds and Sonic fall into the sea. As Chaos Control builds, Sonic appears in his improved form: Super Sonic!

Episode 27: Pure Chaos
Japanese Title: Wazawai no Hajimari (The Beginning of the Disaster)

Two islands, one of them a falling Angel Island, appear on the coast of Station Square. Chaos Control seems to have brought a part of Sonic's world to Earth, leaving the heroes trapped. Also, Amy sits at her home thinking how bored she is and how she misses Sonic and the others. Then a new character named Big the Cat shows up (after appearing in Episode 1 and not appearing until now) and he has a little frog friend named Froggy who swallows a blue glob and he grows a tail! Big is confused, and Froggy runs away. Chasing Froggy, Big runs into Chris and Cream, who are leaving their short visit with Chris's mother and Big tells them about Froggy. Chris and Cream help him search for Froggy. They run into a water-like creature that is creating chaos. Things get worse as Eggman unleashes his E-100 team, an elite robot force, and the robots are powered by animals! The evil creature, Big, Cream, and Chris run into is named Chaos, a shape shifting water creature, and it begins its attack. Sonic appears and comes to the rescue. Eggman tells Sonic and his friends about Chaos and how each time he gets a Chaos Emerald, Chaos becomes bigger and stronger. He gives Chaos two Chaos Emeralds. Knuckles charges into the scene shortly after Sonic. Sonic and Knuckles duel with Chaos in a dramatic battle and win. Suddenly, Eggman and Chaos escape while Sonic and his friends think of how hard Chaos was with two emeralds; it makes them think, "What if he gets more Chaos Emeralds!"

Episode 28: A Chaotic Day
Japanese Title: Nazo no Seimeitai Chaos (The Puzzle of the Liquid Life Form, Chaos)

The gang sets out on several quests: Sonic and Tails to find the Chaos Emeralds, Knuckles to find the pieces of the shattered Master Emerald, and Big and Chris to find Big's friend Froggy. Chaos undergoes another transformation after absorbing more Chaos Emeralds, and Eggman unveils his new Egg Carrier. Tails attacks in the X Tornado, but is overcome, while Amy and a bird with a Chaos Emerald pendant are abducted.

Episode 29: A Robot Rebels
Japanese Title: Toraware no Amy (Amy the Captive)

Sonic and Tails go after Amy, while Knuckles reassembles the Master Emerald to find a piece missing. Big and Chris find Froggy, but lose him to E-102 Gamma. The other E-100s are transported elsewhere, and Gamma is sent to bring Amy and the bird, who was named Lily to Eggman. However, Amy manages to convince the robot to help her, and Gamma frees her from jail.

Episode 30: Heads Up, Tails!
Japanese Title: Egg Carrier no Tatakai (Egg Carrier Battle)

Chaos transforms again, and captures Froggy, Big, and Chris. Sonic and Knuckles are forced to fight Chaos to free them, while Tails must stop an Eggman missile.

Episode 31: Revenge of the Robot
Japanese Title: Sasurai no Gamma (Gamma the Wanderer)

Fed up at the treatment he received under Eggman, Gamma declares his independence and reprograms the other E-100s except Beta, who is still aboard the Egg Carrier. Amy also heads there looking for the family of the bird she has befriended. Meanwhile, Sonic fights Eggman in his new Egg Viper. Amy and Lily flee from Zero, Decoe and Bocoe in the Egg Carrier and then witness Gamma and Beta battle and destroy each other. It is then revealed that Lily's brother and sister were the animals used to run Beta and Gamma.

Episode 32: Flood Fight
Japanese Title: Perfect Chaos no Sakebi (The Scream of Perfect Chaos)

Chaos absorbs the last Chaos Emerald, ascending to his ultimate form and flooding Station Square. Without the Emeralds, Sonic and co. are forced into a desperate battle against Perfect Chaos. Eggman shows up in the Egg Carrier 2, but it is destroyed. Tikal, the ancient Echidna who has been appearing to Sonic and Knuckles in visions of the past, appears and thinks that hope is lost. However, the gang brings the Chaos Emeralds together, and Sonic uses their power to go Super.

Episode 33: Project: Shadow
Japanese Title: Project Shadow no Nazo (The Puzzle of Project Shadow)

While hacking into G.U.N.'s computers, Eggman comes across the diary of his grandfather, Gerald Robotnik and learns of Project Shadow, a mysterious plot that was rumoured to be so dangerous that the military attacked Gerald's home, the Space Colony ARK and captured Gerald and imprisoned the result of Project Shadow, the Ultimate Lifeform, on Prison Island. Eggman and his sidekicks break into Prison Island to unlock the Ultimate Lifeform and are in for quite a surprise.

Episode 34: Shadow Knows
Japanese Title: Toubousha Sonic (Sonic the Fugitive)

A mysterious black hedgehog similar to Sonic robs a bank, stealing the green Chaos Emerald. Sonic is framed for stealing it and G.U.N. forces are chasing him down. Sonic and friends are shocked when they run into the thief: a black hedgehog named Shadow! Shadow is the Ultimate Lifeform, freed by Dr. Eggman. Sonic and Shadow battle, but Shadow makes his escape and Sonic is taken to Prison Island. Meanwhile, Shadow meets Eggman on the ARK and introduces him to the Eclipse Cannon, a powerful weapon that can destroy a planet. Shadow says it needs the Chaos Emeralds to be powered, and Eggman decides to use it to either conquer or destroy Earth. Rouge mysteriously appears, offering her help to collect the emeralds, but what are her real motives?

Episode 35: Sonic's Big Break
Japanese Title: Prison Island Kara no Dasshuttsu (Escape From Prison Island)

Sonic is being held in a top security prison on Prison Island, thanks to Shadow and Eggman. Tails, Amy, Chris and Mr. Tanaka venture onto the island to save Sonic. Shadow, Eggman and Rouge venture onto Prison Island to retrieve three more Chaos Emeralds. Amy releases Sonic, who races off to find Shadow. Rouge finds three emeralds but gets locked in the safe. Shadow uses Chaos Control to get to Rouge, but Chris hitches a ride as well. Shadow teleports them to the ARK, and Prison Island explodes, thankfully everyone escapes without harm.

Episode 36: Shadow World
Japanese Title: Uchuu Kara no Kyouhaku (Threat From Outer Space)

In order to get to Eggman's base on Space Colony Ark, Sonic and co. must infiltrate his launch site. However, first they must contend with Bokkun and the Egg Golem.

Episode 37: Robotnik's Revenge
Japanese Title: Space Colony ARK no Tatakai (Space Colony ARK Battle)

Sonic and co. arrive on Space Colony Ark, and split up. While Sonic takes on Shadow, the others set out to find Eggman. Eggman fires a warning shot from the Eclipse cannon at the moon, destroying half of it.

Episode 38: Showdown in Space
Japanese Title: Maria no Negai, Minna no Negai (Maria's Request, Everyone's Request)

As Space Colony Ark heads for the Earth, the combatants put aside their differences to stop the descent. Shadow rethinks his plans, and decides to aid Sonic and co. He does so by fighting off the Bio-Lizard, a Project Shadow prototype, while Knuckles drains the Chaos Emeralds with the Master Emerald. The Bio-Lizard teleports and attaches itself to the colony, pulling it toward Earth. In order to stop it, Sonic and Shadow go into super-form to stop it.

Episode 39: Defective Detectives
Japanese Title: Chaotix Tantai Jimusho (Chaotix Detective Agency)

While the gang reminisces over their recent adventure, Eggman appears to have reformed. Meanwhile, three detectives named Vector the Crocodile, Espio the Chameleon, and Charmy Bee arrive and appear to be looking for Cream. Eggman replaces the moon half he destroyed with a mechanical dome. And when the Chaotix Detectives confront Tails and Amy, the person who hired them appears.

Episode 40: Sunblock Solution
Japanese Title: Eggman Kabushikigaisha (Eggman Corporation)

When the sun is eclipsed during the New Years celebration, Eggman steps in to help. He claims that the Egg Moon has malfunctioned, and then provides a solution with his new Sunshine Balls. Eggman becomes the hero, but Sonic doesn't trust him and begins demolishing the towers that Eggman uses to power the balls.

Episode 41: Eggman for President
''Japanese Title: Hikari wo Warera ni! (We Can See The Light!)''

Everyone tries to stop Sonic's rampage in order to find out why he's doing it. Sonic reveals that the Eggmoon can't possibly block the sunlight all the time because the Earth is rotating, the moon is rotating around the Earth, and the two are both revolving around the sun. If the Eggmoon had really stopped moving, the rotation would allow for sunlight most of the time; therefore, Eggman is lying. Eggman takes the President hostage, but is thwarted when Sonic and co. show up to save him. The Eggmoon is taken out of Eggman's control, and Eggman is sent to jail.

Episode 42: A Date to Forget
''Japanese Title: Amy Ai no Touhikou!? (Amy, Love's Escape Journey!?)''

Amy becomes angry when Sonic misses their date, and goes out with Sam instead. Bokkun, left to free Eggman from Jail, activates an old robot named Emerl to aid him. Sonic is forced to take on Bokkun, while Amy and Sam battle one of Eggman's robots. Amy soon learns why Sonic likes to run so much.

Episode 43: Mean Machines
''Japanese Title: Kaden Dai Panic! (Huge Home Electronics Panic!)''

As the Sonic craze spreads, Thorndyke Industries appliances become less than perfect as workers quit to copy their hero. Eggman, in prison, repairs the appliances and places special microchips on them. When he activates them, the appliances turn evil and begin to attack the city. During the battle, Emerl somehow copies Sonic's super spin. Sonic and Knuckles then do battle with the machines, while the escaped Eggman gloats.

Episode 44: The Sewer Search
Japanese Title: Okashi na Okashi na Spy Daisakusen (The Ridiculous Epic Spy Battle)

With Eggman on the loose, everyone is searching for him. Mr. Stuart and the kids manage to locate his hideout, but are captured. Sonic arrives to help, but is caught by Eggman's Egg Spider. Rouge arrives to help, and Emerl copies her spinning kick to break down the door.

Episode 45: Prize Fights
''Japanese Title: Sonic Battle - Kaisai!! (Sonic Battle - Face Off!!)''

To lure Eggman into the open, the President throws a tournament with the red Chaos Emerald as the prize. Sonic and co. all enter, as do the President, a former aid, Mr. Stuart, Sam, Lucky, and Hawk. As the fights progress, Lucky manages to win through sheer luck, and Emerl defeats opponent after opponent. Sonic, forced to fight Amy, withdraws to pursue Eggman when he arrives looking for trouble. The final lineup includes: Knuckles, Amy, Rouge, Emerl, Lucky, Chris, Mr. Stewart and Tanaka.

Episode 46: A Wild Win
''Japanese Title: Sonic Battle - Kesshou!! (Sonic Battle - Finale!!)''

As Sonic chases Eggman, the tournament draws to a close. Knuckles takes on Rouge, defeating her, and then proceeds to the final match with Emerl. He loses, and Emerl gets the Emerald. However, when he absorbs it, he instantly starts wrecking everything. Despite the combined efforts of Sonic, Knuckles, Rouge, Tails and Amy, Emerl is unhalted. It is only when Cream and Cheese step in that Emerl is overcome.

Episode 47: Map of Mayhem
Japanese Title: Ido Zero Daikessen (Decisive Battle on the Equator)

Dr. Eggman kidnaps a group of GUN soldiers, including Topaz, and steals a map of the lost continent of Murasia. Pursuing him, Sonic and the gang find him planning to activate a hotspot located beneath an island that is the last remnant of Murasia. Engaging Eggman's Giant-Makan warship, they are joined by the EGGfort 1, which has been recovered and refurbished into the GUNfort. The GUNfort sets out to destroy Eggman's vessel, not caring for the prisoners aboard. In desperation, Eggman fires the Giant-Makan's main weapon, driving off the GUN forces. Eggman, his allies, and Sonic's friends then land on the island.

Episode 48: The Volcanic Venture
Japanese Title: Sonic vs Taichitei Kaijuu (Sonic vs Monster from the Underground)

Traveling around on the island, Eggman plans to set off the hotspot with an explosive. While Sonic, Knuckles, and Rouge investigate the subterranean landscape of the island, the others are trying to locate Dr. Eggman. Unwittingly, the intruders awaken a giant Mogera esque robot that attacks them. Over the coarse of a pitched battle, Decoe and Bocoe reject Dr. Eggman and try to help, but are sent flying. Sonic then throws Eggman's explosive into the robot, causing it to explode. The island begins to sink, and everyone escapes. Rouge reveals a jewel recovered from Murasia, but it is taken by the professor who accompanied them, much to Knuckles' amusement. Decoe and Bocoe then emerge, having been rebuilt by Tails and Chuck, and denounce Dr. Eggman.

Episode 49: The Beginning of the End
Japanese Title: Sekai ga Seishi Suru hi (The Day the Earth Stood Still)

During a barbecue, Chuck gets a phone call from the president. Later, someone shows up explaining the that Sonic's world and theirs were once one and at some point in the past a catastrophic event caused the worlds to split and join parallel universes running on their own timeline. The two worlds are rejoining and the timelines will cancel each other out causing time to freeze and the only way to stop this is to send Sonic and the rest back. Chris believes this is one of Dr. Eggman's tricks so he runs away and asks Decoe and Bocoe to take him to Eggman. When Eggman tells him he didn't do it, Chris goes back home. The episode ends with Sonic finding one of the two missing Chaos Emeralds.

Episode 50: Running Out of Time
Japanese Title: Wakare no Asa (Morning of Farewells)

Tails and Chuck are working on a machine to initiate Chaos Control to send Sonic and the rest back. Meanwhile, Eggman, Decoe, and Bocoe are being attacked with no permission from the president. Sonic destroys some of the robots attacking them as they run through a door on a small tower which then lifts up and turns into Eggman's newest flying fortress, the Grand Egg Imperial. Eggman, telling Sonic he told him he didn't need his help, gives him a small box with a computer microchip inside since he tried to save him. Sonic gives this to Tails and Chuck with turns out to be the last part they need for the machine. Later, they start up the portal but it shuts back down. Sonic gives them the emerald he found and they start it back up. Eggman, Decoe, and Bocoe, in the fortress, along with all the other creatures that came through from Sonic's world, go through the portal, but it shuts down again. Tails works on the portal and manages to get energy from Space Colony ARK and starts it back up. Amy, Cream, Cheese, Tails, and Knuckles leave now and as Sonic is about to leave Chris says goodbye to him. Just as he's about to step through the portal, Chris runs over and shuts it down.

Episode 51: Friends 'Til the End
Japanese Title: Chris no Nagai Tabi (Chris' Long Journey)

Chris runs away with Sonic as Chris' father, Nelson Thorndyke, sends helicopters out to look for them. After going from place to place trying to hide, they reach a cabin that Chris and his family used to go to but all of a sudden stopped. Chris can't get in because of a lock but Sonic breaks it saying "Huh...Looks like the chain broke." They sit by the campfire near the beach out in front of the cabin as Chris's mother and father are looking for him, thinking he might be there. They come running up and see Chris standing on the deck alone.

Episode 52: A New Start
Japanese Title: Kaze No Omoide (Memories of the Wind)

The episode starts out as Eggman is annoucing that he's back and is going to rule the world, hoping that he will lure Sonic to him. Sonic hadn't shown up yet and everyone wondered if he was there or not. That night, Eggman flies his fortress around announcing the same thing, trying to find Sonic. Amy ran outside and threw a hammer at the fortress and he exclaimed that now she didn't have another right before another one appeared in her hand. In the Tornado, Tails flies in with his nightcap trying to stop Eggman. Eggman wants Tails to help him but Tails refuses. Eggman tells Tails he isn't ready to fight him yet as the ship is hit by another hammer. Eggman flies off as Tails follows him. Eggman tries to hide behind some clouds trying to trick Tails but Tails starts shooting at him first. As Eggman starts firing at him and surronds him with missile fire, Tails realizes he has to give up. He pulls a lever and a message from Chuck says that he modified the Tornado saying he hopes his gift comes in handy. The Tornado transforms into a high-powered Hyper Tornado jet. Tails attacks him with plasma blasts and missile fire but Eggman's ship is unaffected. Eggman fires his new Interceptor Missile that only follows Tails' plane and Tails can't get rid of it. Just then, Super Sonic appears and blow up the missile right before it hit Tails. Super Sonic then lands on Eggman's ship and Eggman comments that he's finally back. Then Sonic says Eggman won't be taking over this world either and Eggmans tells him not to get in the way. Then he blows up the ship and flies away. Super Sonic lands and as the sun raises shining bright Amy comes to her house to find Sonic waiting there for her. She yells at him saying how stupid he was and that she thought she'd never see him again and breaks down in tears at how she's so happy now to finally have him back. She just wants Sonic to say that I love you: the hedgehog hands her a flower and replies. This event varies between countries; in the Japanese version, Sonic says something to Amy but it is muted, and in the American and English versions he says he will never leave Amy. Only in the French dub Sonic actually says he loves Amy. The two fall to the ground hugging and kissing. Elsewhere, some time has gone by and Chris stands next to the portal working on it as Helen comes in telling him that it is time. They race out in a car with Helen driving in a specially designed car. Helen says that Chris isn't a good driver and at the place Danny says he wants to be the first to go through. Chris says that it's useless until he figures out how to cause Chaos control. The two of them say that they cannot believe it has already been six years. He remembers the point when he was saying goodbye and realizes that Sonic can cause Chaos Control. Sonic says to hold on tight and that he is going to go really fast. Chris has some flashbacks, his times with Shadow, the first time Super Sonic was seen, and the time he rescued Sonic from the pool. With that Chris lets out a tear and sees Sonic letting out his own as Sonic uses Chaos Control to leave.

Episode 53: The Cosmic Call
In the episode's opening, Super Sonic is fighting against a mysterious robot. Super Sonic is unable to defeat him and he sends the Chaos Emeralds away to avoid his opponent to take them from him. Without the Emeralds, Sonic loses his energy and he falls to his planet. Another robot (a Metarex) follows him. Back on the planet, Tails, Amy, Cream & Cheese watch the sky and assist to a meteoric shower. However, a space ship crashes near them, carrying a strange alien girl named Cosmo. After introducing themselves, they are surprised by the arriving Metarex who starts destroying the forest with laser beams. Tails, accompanied by Cosmo, starts fighting it with the X-Tornado and he's soon joined by Knuckles. Sonic (who was rescued by Dr. Eggman) arrives but they can't beat the Metarex. The last-mentioned is able to finish his duty: to remove the "planet egg" which, Cosmo explains, "is the lifeforce that sustains their world". Sonic, Tails, and Knuckles make a last effort to save the Planet Egg, but the Meterex escapes. Cosmo then tells Sonic that he is the final hope to save the galaxy. At the same moment, Chris (who is now 18) completes his new machine that will transport him to Sonic's world. It works, but Chris arrives in his 12-year-old body.

Episode 54: Cosmic Crisis
Chris arrives in Sonic's world as his 12-year-old self. He makes contact with everyone, but Sonic faints shortly after. Apparently, the recent battle tailed him off. Back to Cream's house, Cosmo explains the Metarex goals and the consequences of the planet egg's removal. Cosmo also admits that she's the only survivor from her group, which was eliminated by the Metarex. Everybody (except for Knuckles, who's suspicious of her) agrees that the Metarex must be stopped and they decide to go into space to destroy the Metarex and to find the lost Chaos Emeralds. Luckily for them, Tails has just finished to build his new invention: a big flying fortress called the Blue Typhoon. Unfortunately, his new ship used to be powered by the Chaos Emeralds. Chris thinks that they could use the Master Emerald. Knuckles disagrees, but with some female "persuasion" (aka: They beat him up), he finally agrees. At the same time, another Metarex is sent to the planet in order to destroy Sonic and the Blue Typhoon. A fight engages between the Metarex and Sonic & Knuckles. With the help of the Typhoon's primary weapon, the "Sonic Power Cannon" ("Sonic Driver" in the original Japanese version), the Metarex is destroyed. The Blue Typhoon takes off, but it is followed by Dr. Eggman and Rouge.

Episode 55: H2Whoa
The Blue Typhoon is now on its way to a new adventure. Knuckles thinks that a Chaos emerald is nearby due to the Master Emerald's reactions. A planet is located and according to Sonic's guidebook, this is a dry planet. However, they find out that it's covered by water. Accidentally separated of the others, Chris & Sonic arrive to a Metarex base, where several Metarex await them. The fight is engaged, but Chris, wanting to help his friend, is unable to punch a Metarex without hurting himself. Eventually, Sonic is captured and Chris is able to escape. Informing Tails of the situation, Chris wants to rescue Sonic with the X-Tornado, but Tails insists that Chris won't be capable of his own. This leads Chris to question himself about his utility in their mission. Finally, Amy and Tails succeed to rescue Sonic with the X-Tornado, but Metarex attack the plane and by accident, Sonic falls straight toward the water. Chris arrives with another plane and saves Sonic with his own invention: hover shoes. The Metarex are finally defeated, the water retires from the planet and the Chaos Emerald is found.

Episode 56: An Enemy in Need
After saving the planet in the former episode, Sonic and his friends are thanked in a feast. Dr. Eggman is watching the scene and he thinks about his next scheme to take away the Chaos emerald. Bokkun suggests a plan to Eggman, but the evil doctor doesn't notice that it has been elaborated by Rouge, who made her way to the Egg Carrier. Eggman soon finds Knuckles and he tries to persuade him that he tired to be a bad person and he wishes to leave the planet by using a Chaos Emerald. Knuckles believes him and he finds the others in order to take the Emerald they just found and to give it to Eggman. Sonic disagrees and both of them engage in a fight. Taking advantage of the situation, Eggman almost takes the Emerald, but he is stopped by Amy and the others. Then, a giant robot controlled by Bocoe and Decoe appears suddendly and it captures Cosmo. Eggman summons Sonic to give him the Emerald and he would let Cosmo go away. But at the same moment, a frog-shaped Metarex rises from the ground and it grabs the Emerald. Eggman let Cosmo go and he engages a fight against the Metarex. However, Eggman is defeated. It's Sonic's turn to fight the Metarex and, with the help of the Sonic Power Cannon and a Chris' trick, the blue hedgehog is victorious. The episode ends as Knuckles apologizes for being fooled by Eggman.

Episode 57: A Chilling Discovery
With the help of Chris' new program, the Blue Typhoon spots a Chaos Emerald on planet Freezy. Followed by Dr. Eggman's Egg Carrier, the Blue Typhoon approaches planet Freezy, but it's attacked by a Metarex and it crashes on the planet. Sonic, Chris, Knuckles and Cosmo decide to go get the Chaos Emerald with the X-Tornado. Rouge is also on her way for getting the emerald before Sonic. Everybody has to fight Metarex before reaching an ice palace, where the emerald is supposed to be located. Sonic's group find it, but it's sealed in a solid ice block. A more powerful Metarex appears and gets power from the emerald to become even stronger. A fight engages and Cosmo finds the way to defeat it with a laser beam. Knuckles finds the Chaos Emerald but before he gets it, Rouge steals it. However, Tails discovers that the emerald was a fake one.

Episode 58: Desperately Seeking Sonic
The Blue Typhoon detects two Metarex who just stole a Planet Egg on a jungle planet. Sonic destroys the biggest Metarex with the Power Cannon, but he is launched too hardly and he falls straight to the planet. He crashes on Dr. Eggman, who is already on the planet, and he takes the Chaos Emerald that the evil doctor has just discovered. Having landed on the planet, Tails and Knuckles get aboard the X-Tornado in order to find Sonic, leaving Amy behind. Amy desperately wants to find Sonic by herself and she enters into the jungle. She is accompanied by Cosmo, who wants to find the Planet Egg, and Cream & Cheese, who don't want to be left alone. Discovering he was left alone, Chris contacts Tails, but at the same moment, the X-Tornado spots a Chaos Emerald. Inside the jungle, Amy, Cosmo, Cream & Cheese struggle to find Sonic and the Planet Egg, but they are captured twice by the small Metarex who survived the previous fight. However, they escape and are able to take possession of the Planet Egg. Sonic is still running in the jungle with the Chaos Emerald in his hand and he is found by Tails and Knuckles. Dr. Eggman arrives and he steals the emerald from Sonic. Sonic and Knuckles prepare to fight, but the girl group and the Metarex appear. Eggman captures everybody (even the Metarex). The Planet Egg begins reacting and huge creepers wraps everyone. Chris arrives and Sonic is able to free himself and with a little help from Tails and Chris, he defeats Eggman. Finally, the Planet Egg gets back where it belongs and Sonic & his friends get back to the Blue Typhoon with two Chaos Emeralds in account now.

Episode 59: Galactic Gumshoes
Chris' grandfather, Chuck, finds a way to teleport material objects to Sonic's world. The stuff is discovered by Vanilla and she asks the Chaotix Detective Agency to deliver it to Chris. She's also worried about her daughter Cream and she asks them to check on her. Vector accepts, but Espio tells him that they don't have any space ship. However, Chuck also sends a space ship to Sonic's planet and the Chaotix are on their way. Aboard the Blue Typhoon, Sonic and Knuckles are playing chess. Knuckles takes time before moving a piece, and Sonic decides to take a quick walk on the ship. Accidentally, Sonic slips from the ship and he diverts into space. Knuckles leaves the Typhoon to retrieve him. Inside the ship, Tails points out that another space ship is approaching and everybody is convicted that it's a Metarex ship. Vector, Espio and Charmy try, one by one, to get aboard the Blue Typhoon, but they are all thrown out from it. They take a little distance from the Typhoon temporarily, but Tails pursues them. He discovers a little house on the Chaotix ship and he realizes that it wasn't an enemy ship. Chris and the other ones apology and everybody unburdens the Chaotix ship from the stuff sent by Chris' family. Vector, having misinterpreted Vanilla's wishes, decide to leave the Blue Typhoon, taking Cream with them. Vector kidnaps Cream, but also Cosmo (although without his knowing). But Sonic is back and he fights Vector in order to take the girls back with him. Finally, an agreement is settled and Cream gets back to the Blue Typhoon. The episode closes in Eggman's Egg Carrier, where Rouge finds a strange capsule in a secret room.

Episode 60: Trick Sand
The episode opens with a dream from Chris, where he remembers the events of Space Colony ARK and the loss of Shadow. He is awakened by Tails who tell him he has just found the signal from a Chaos Emerald. Inside the Crimson Egg, Rouge returns to the secret room she has just discovered and she spots a Chaos Emerald which is powering the strange capsule. She tries taking the emerald, but she launches an alarm and at the same time, she discovers that Shadow is currently hibernating inside the capsule. She's found out by Dr. Eggman. The Blue Typhoon follows the Chaos Emerald's signal to a dark, abandoned planet. Sonic, Amy and Knuckles search inside an old castle, while Chris and Cosmo look inside an ancient colony. Sonic's group quickly notices that the castle is a trap. In fact, it's an illusion created by a Metarex. This Metarex suddendly turns the castle into a sandtrap and almost catches Sonic. The Metarex attacks Sonic's group and Chris, who is in the X-Tornado. Sonic try to counter-attack, but he is not able to beat the Metarex. Chris tries his luck and he fails too. At the same moment, in the Egg Carrier, Shadow awakens and he teleports himself to the fight place. He easily defeats the Metarex and he shows his presence to everybody. He looks at Chris, who just said Shadow's name, and he disappears.

Episode 61: Ship of Doom
The show opens with a fight involving a huge Metarex named Scarship and an armada of smaller ships. Scarship destroys every ship and he's assigned to a new mission: to destroy Sonic and Dr. Eggman. Inside the Blue Typhoon, everybody questions himself about Shadow's return. Aboard the Egg Carrier, Dr. Eggman finds out that Scarship is approaching and the battle engages. Eggman sends Shadow to destroy Scarship, but Shadow is unable to do the job. Rouge flees from the Egg Carrier, just before Starship sends a missile and seems to have destroyed it. Rouge informs the Blue Typhoon's crew of the situation and sends them images from the battle. Cosmo recognizes Scarship, it's the Metarex who destroyed her group's ship. Cosmo begs Tails to flee away, because she doesn't want to risk her friend's lives. However, Sonic and the others insist that they need to face Scarship. The battle starts and nobody gets the advantage. However, Sonic, Amy and Knuckles leave the ship unnoticed and they find a way to block Scarship's weapons. Scarship decide to destroy the Blue Typhoon by crashing into it. The Typhoon won't be able to get out of its way in time, but Shadow appears from nowhere and takes Scarship away. It appears that Eggman was able to escape from Scarship. Sonic and Shadow get inside Scarship and they destroy the engine room. However, Scarship won't ever surrender and it's about to self-destroy. Shadow is able to freeze time around it and Sonic defeats it with the Power Cannon.

Episode 62: An Underground Odyssey
The show opens with a sequence inside Cosmo's ship and ends when Scarship (see previous episode) destroys it, leaving Cosmo alone. Then, we find out the Blue Typhoon's crew on a new planet. It seems that there's a Chaos Emerald nearby. Tails, Knuckles and Cosmo follow the emerald's track to an abandoned city. Knuckles discovers a deep gorge. Lower, there's a cave. Tails and Cosmo enter, but Cosmo accidentally pushes a button which launches an avalanche and seals them inside the cave. Tails still receives the emerald's signal and he and Cosmo pursue their searches. Inside the Blue Typhoon, Amy receives a distress call from Knuckles and she informs Chris, Sonic, Cream and Cheese (who are all aboard the X-Tornado) of the situation. Inside the cave, Tails and Cosmo discover a big factory full of Metarex. They enter unnoticed and they find the Chaos Emerald inside a manufacturing plant of fake emeralds. They are found out by the Metarex, but they are able to escape with the real emerald. Then, Tails fools the Metarex with special "fireflies". Tails and Cosmo are found retrieved by the Metarex and they steal the emerald from them. Tails engages a fight and Cosmo can take back the emerald. Tails is caught by a Metarex, but fortunelately for them, Sonic and the others come to the rescue. Tails and Cosmo also are starting to have feelings for each other.

Episode 63: Station Break-In
Dr. Eggman discovers that the last two Chaos Emeralds are located inside a huge Metarex fortress. The Crimson Egg and the Blue Typhoon arrive on location at the same moment. Eggman suggests Sonic to put their efforts together in order to enter inside the fortress. His plan: a little group will enter first and disconnect the fortress' security system, so the other ones could penetrate. Eggman sends Shadow and Rouge while Chris volunteers to accompany them. They enter with the help of Chaos Control and they succeed in their job. Sonic & Knuckles penetrate in the fortress aboard the X-Tornado, Amy & Cosmo follow them and Eggman, Bocoe & Decoe are right behind. However, Eggman secretly installed a special device on each ship and he can take control of Sonic and Amy's ships. Eggman almost succeeds, but Sonic finds the emeralds first. The only thing: he is welcomed by an entire army of Metarex, led by Dark Oak, the Metarex leader, and the battle is about to begin.

Episode 64: A Metarex Melee
The fight between Sonic and Dark Oak starts. Sonic directly attacks Dark Oak, but he instantly disappears: it was a hologram. Outside the fortress, a Metarex armada, led by Red Pine, is approaching. Surprisingly, the Red Pine army begins to attack their own fortress, while there still are Metarex inside. Shadow, Rouge and Chris are transported, via Chaos Control, inside the Egg Carrier. Chris finds a way to steal the emeralds found by Eggman and flees away by using one of Eggman's mini-ships. Shadow follows him and he stops him. The seven Chaos Emeralds are put together, transforming Sonic and Shadow into their super forms. Super Sonic and Super Shadow engage into a fight inside the fortress. At the same moment, a gravitational field is activated inside the fortress and it starts to destroy itself from the inside. The Metarex armada is destroyed, Super Shadow sends the Egg Carrier away with Chaos Control and the Blue Typhoon escapes with the power of the Master Emerald. However, during the event, the seven Chaos Emeralds disappeared.

Episode 65: Mission: Match-Up
The Blue Typhoon encounters the Chaotix ship. Once aboard the Typhoon, Vector and Espio explain that they lost themselves in space and that their radio got broken. Tails agrees to fix their ship and he warns them that he doesn't want any trouble on the Typhoon. Tails begins his work when Cosmo brings him lunch. She reveals that she's planning a surprise for everybody. The Chaotix watch the scene and Vector notices the growing relationship between Tails and Cosmo. In order to thank Tails for fixing his ship, Vector decides to help him winning Cosmo's heart. At the same time, Tails unintentionally discovers Cosmo's surprise : she plans to throw a party on the ship. Cosmo is disappointed because it won't be a surprise for Tails now, but the little fox tells her that she won't be able to prepare everything all by herself. Also on the scene, the Chaotix propose their help and Vector takes it as an opportunity to throw his match-up plans. However, they all fail one by one. Espio believes that their relationship should develop naturally. After finishing the preparations, the Chaotix go get everybody to the party room when they cross Knuckles' path. Knuckles was used against his will in one of Vector's plans and he decides to take his revenge. Accidentally, they end up in the party room and they ruin everything. Arriving on the scene, Tails and Cosmo are dispappointed, but Sonic says it's no problem and that they'll put everything back. He also thanks Cosmo for her party idea. The episode ends with Cosmo and Tails watching the stars outside in space.

Episode 66: Clash in the Cloister
The Blue Typhoon is pulled into the Intergalactic Cloister, a strange region of space. Eager to do battle, Metarex Commander Yellow Zelkova launches an attack on the Blue Typhoon. Sonic and Knuckles team up to fight him, finding that Zelkova is too powerful for them. However, they then trick him into freeing the Blue Typhoon from a formation of space stalactites, and put him in line with the Sonic Driver cannon. They fire, and Zelkova is thrown back, but not destroyed. They then escape as he swears vengeance.

Episode 67: Teasing Time
Sonic and friends come across a barren planet with Chaos Emerald signals coming from it. Black Narcissus is inside, and sends a message to the Typhoon, a message that only Cosmo can understand. He then sets off fireworks, allowing Cosmo to escape to the planet undetected. Unexpectedly, Chris follows, but Narcissus captures both him and Cosmo. Sonic comes to rescue them and is horrified by their predicament, but because the Chaos Emeralds they detected were fake, Sonic draws upon their negative energies and becomes Dark Super Sonic. Dark Super Sonic then proceeds to destroy two Metarex robots Narcissus had prepared just for him. Suddenly, Eggman appears and has Decoe and Bocoe hold Narcissus down while Bokkun kicks him, dealing some damage. Sonic and friends then escape.

Episode 68: A Revolutionary Tale
While traveling through space, Dr. Eggman and his forces come across a group of humans battling the armada of Pale Bay Leaf. The two groups talk, and Shadow and Rouge get to know a human girl named Molly. After seeing Shadow in battle, Molly comes to believe that Shadow is a hero of folklore named Black Wind. Eggman is then taken prisoner by the humans, revealing that they have made a deal with the Metarex. Molly flees in shame*, while Shadow uses a Chaos Emerald to devastate the Metarex forces. Despite the damage, Pale Bay Leaf survives, and communicates with Dr. Eggman.


 * NOTE: In the original Japanese version, Molly is instead killed when she fires on the Metarex ships, prompting the Metarex to fire upon her in retaliation, causing her ship to explode. At the end of the episode, Shadow and Rouge are standing next to Molly's gravestone, an artifact digitally edited out of the English version.

Episode 69: The Planet of Misfortune
In this episode, Amy tries to put a love spell on Sonic. However, it ends up backfiring, and instead works on Tails and Cosmo at the end of the episode, leading to the two embracing while watching the moon. This episode basically confirms Tails and Cosmo's relationship, while Amy gets extremely angry that she didn't catch Sonic.

Episode 70: Terror on the Typhoon
While traveling in the Galactic Cloister, the Blue Typhoon comes under attack from the Metarex fleet, led by the three surviving commanders and Dr. Eggman. Sonic attempts to attack from the Sonic Driver, but Dr. Eggman deploys a shield that not only repulses Sonic's attack, but causes an overload explosion that puts Knuckles out of commission. With Sonic and Knuckles both out cold, Tails assumes command reluctantly until Cosmo boosts his confidence. Coming up with a plan, Tails pilots the Blue Typhoon towards a black hole in the Cloister. Sonic and Knuckles recover long enough to deploy the Sonic Driver, reversing the black hole and allowing the Blue Typhoon to escape. Visiting the medical bay, Tails is praised by the injured Sonic and Knuckles.

Episode 71: Hedgehog Hunt
Following their battle with the Metarex fleet, Sonic and the gang are stranded on an alien planet with the Chaotix, who are running a cafe to pay for parts to their own ship. Dr. Eggman arrives looking for Sonic and the others, while Pale Bay Leaf waits in orbit to shoot the Typhoon down. Helping out Sonic and the gang, the Chaotix provide parts for their ship. However, Dr. Eggman provides the real assistance when he disguises the Egg Crimson as the Blue Typhoon and takes the full force of the Metarex attack. Pale Bay Leaf moves off, and no ambush awaits the real Typhoon once it takes off.

Episode 72: Zelkova Strikes Back
Yellow Zelkova attacks the Blue Typhoon, equipped with a special energy shield built by Dr. Eggman. Sonic attempts to stop him, but is unable to break through the shield. Picking up where they left off, Zelkova and Knuckles get into a fierce battle, during which Knuckles smashes Zelkova's knee and breaks the spurs on one of his gloves. Using cable from the Blue Typhoon, Sonic and the others channel lightning to overload Zelkova's shield. Zelkova's mechanical outer body is destroyed, revealing the Seedrian form beneath. Zelkova attacks, but is knocked into a nearby lava pit by Knuckles. Pale Bay Leaf informs Eggman of Zelkova's demise, mocking the failure of his shield.

Episode 73: The Cosmo Conspiracy
Shadow attacks the Blue Typhoon trying to kill Cosmo (changed to "get rid of" in the English dub). Despite the efforts of Tails and Knuckles to hold him off, Shadow reaches Cosmo. However, before he can harm her, Dark Oak's flagship arrives, and Cosmo is revealed to have an implant that allows the Metarex to monitor everything she hears and sees. Along the way he nearly kills Sonic, Tails, Knuckles, and Chris

Episode 74: Eye Spy
When the team discovers that Cosmo's brain is emitting a signal to the Metarex, they plan on trying to eliminate the signal, except that the signal is connected to the part of her brain that translates sounds and sight. While Tails and Cosmo are torn about this, Knuckles pushes for the surgery.

Meanwhile, Amy starts searching for Sonic (as always), but ends up bumping into Rouge. They both discover that this planet is not only Cosmo's homeworld, but the Metarex's as well. They also discover that Cosmo's people were able to transform into huge dinosaur-like beings to protect their planet from an alien invasion. However, a few of them wanted to be able to completely destroy the alien hoarde, and so crystallized the Planet Egg in order to keep the transformation from sapping their energy. They eventually led to the abandonment of the planet.

Cosmo, horrified by the fact that the Metarex are using her to spy on them, intends to leave, but Tails reassures her that they all will help her defeat the Metarex. Sonic and the rest of the gang also support the new resolution, and they all are ready for an attack on the Metarex, maybe the last attack.

At the end of the episode, Bokkun arrives, telling Shadow and Chris that Eggman has been captured by the Metarex.

Episode 75: Angel of Mischief
When Bokkun shows everyone Eggman's message (telling that the Metarex are starting to gather at galactic coordinates (0-0-0) because of a thousand-year prophecy), the gang starts lifting off to go beat the Metarex once and for all. Unfortunately, they leave Shadow behind! However, the Chaotix find Shadow and offer him a ride (for free, which is the surprising part) to galactic coordinates (0-0-0).

Once Sonic and the gang reach (0-0-0), they find the Metarex fleet there, ready while a Planet Egg warps in from another universe. The Egg is in the center of a planet of water, which, combined with the light of the Chaos Emeralds, help Dark Oak and two other Metarex to mutate into a giant plant-dragon mix! Sonic's fleet starts attacking the planet, but then Sonic is catapulted into the air by a pillar of water! Dark Oak then swallows Sonic, who plunges face-first into the planet.

"Ha! Now Sonic the Hedgehog, how can you hope to defeat us? Water is your weakness, and our strength! Now Forestation will be unstoppable!"

Meanwhile, Chris infiltrates Dark Oak's ship to blow Eggman, Bocoe, and Decoe out. At the same time, Shadow and the Chaotix fight more Metarex, Shadow asking every Metarex he comes across where Dark Oak is. Eventually, the ship comes apart to reveal a giant tree, which attaches to the aquatic planet and starts growing to an unimaginable size!

Episode 76: The Light in the Darkness
Amy tries to rescue Sonic from the watery planet, but everyone else keeps her back, trying to come up with another plan. Then, Rouge comes up with a brilliant idea: use the Master Emerald to cut off the energy supply to Dark Oak! The team charges up the Sonic Driver with the Master Emerald and fires it at Black Narcissus and Pale Bayleaf, destroying them. Unfortunately, after this is done, the Master Emerald shatters, and it is revealed that the Metarex have sucked up all the Chaos Emerald's energy!

Dark Oak's beast head becomes extremely weak because of a hit from the Sonic Driver, and finally ceases movement. The planet expands, taking Dark Oak along with it. Inside the planet, Sonic sees what happens after the Forestation process is complete. He manages to fight a bunch of sand monsters and plant-like tentacles, only to find out he's fighting in a dream. Suddenly, Amy spots Sonic inside the planet is able to get Sonic out of there, crashing through the roots into the water to rescue him.

Suddenly, the planet condenses into a giant seed-like object! Sonic stares at it, probably in despair.

Episode 77: A Fearless Friend
When the giant seed finally reaches the final stage of its metamorphosis and starts sucking the life out of everyone except for Cosmo, she takes the Chaos Emeralds to Eggman, thinking that he'll know what to do. Unfortunately, Dark Oak attacks Cosmo, who drops the Chaos Emeralds into space. Thankfully, they close in on Sonic and Shadow, who use them to transform into Super Sonic and Super Shadow and attack the Metarex seed. But, once they destroy it, they reveal an even smaller planet with a gravitational force that could potentially destroy the whole galaxy!

Cosmo feels helpless but her mother, in her mind, assures her that she is the one who will save the galaxy. She then transforms into a new form and becomes determined to stop this once and for all. She flies over to the planet, passes through the gravitational force that neither Super Sonic nor Super Shadow could pass through, and plants herself atop it. She then becomes a tree, saying that she has now immobilized Dark Oak. She tells Tails to load and fire the Sonic Driver and shoot it at the planet. Everyone is shocked and does not know whether or not to risk saving the galaxy if they're going to kill Cosmo in the process. Tails, however, is very hesitant, but Cosmo re-assures him that her seeds will be spread throughout the galaxy. He then thinks back to all of the good times they've had and their love and, tearfully, fires Super Sonic and Super Shadow at the planet, completely destroying it. Cosmo then greets Tails a final "farewell" vision saying she'll never forget Tails before kissing him on the lips (which was omitted from the English dub).

Episode 78: So Long Sonic
The episode starts off with Vanilla stopping by the Chaotix Detective Office to thank the Chaotix for all that they did for her and Cream. Amy and Cream then bring a whole bunch of snacks to Tails to try and cheer him up. (Note: This entire first part, almost four minutes long, was not shown in the English dub of the episode.)

Chris then flashes back to the point just when the planet with Cosmo on it was being destroyed. Lucas is seen following Hertia to peace. Suddenly, the planet begins to expend all of its energy. Punching Sonic out of the way (which looked very painful for Sonic), Shadow uses the last of his energy to perform Chaos Control to stop time, giving everyone else a chance to escape. Eggman then worries that Shadow may not have survived the Chaos Control he did to save everyone, and he begins to feel some remorse for Shadow. Meanwhile, Sonic approaches Tails with only a seed from Cosmo. Tails, already upset about losing her, finally falls into Sonic's arms, crying as they fly away.

Back on their homeworld, Chris and Knuckles have a little discussion about what's next for Chris, and they fall along the lines of where Chris's home would be now that he can't go back. Rouge is seen in Eggman's ship staring at Shadow's pod. After a run-in with Eggman, Rouge suspects that he knows something about Shadow's whereabouts. Near the end of the episode, Eggman shows Chris an egg-shaped pod that will take him home, but there's a catch: Chris only has three minutes to return home, or else he could be stuck in Sonic's world! Chris has no time to say goodbye to his friends, just as Eggman planned. Chris then leaves Sonic's universe via Eggman's pod. Once Chris is gone from sight, Eggman says that with Chris out of the way, he can continue in his creation of the Eggman Empire.

Sonic's last words were "I won't forgive you, Eggman!" ("Life never stays slow around here for long, thank goodness! Watch out Eggman, I'm coming at'cha full speed!" in the English dub). We then see a pot with a seed (apparently the one Sonic found) in it. The episode ends as the Egg pod with Chris in it flies out into space and then twinkles out. Chris was supposedly sent home.

Episode list

 * New World Arc: Episodes 1-13
 * Chaos Emerald Arc: Episodes 14-26 (End of Season 1)
 * Sonic Adventure Arc: Episodes 27-32
 * Sonic Adventure 2 Arc: Episodes 33-38
 * Sonic Battle Arc: Episodes 39-46
 * Final Earth Adventure: Episodes 47-52 (End of Season 2)
 * The Metarex Saga: Episodes 53-78 (End of Season 3)

U.S. Title (Japan Title)


 * 1) Chaos Control Freaks (Enter the Supersonic Hedgehog!)
 * 2) Sonic to the Rescue (Infiltrate! Area 99)
 * 3) Missile Wrist Rampage (Dr. Eggman's Ambition)
 * 4) Chaos Emerald Chaos (Get the Chaos Emerald!)
 * 5) Cracking Knuckles (Clash! Sonic vs. Knuckles)
 * 6) Techno Teacher (Fierce Battle! School Wars)
 * 7) Party Hardly (Giant Free for All! Chris' House Party)
 * 8) Satellite Swindle (Emergency Launch! X-Tornado)
 * 9) The Last Resort (Amy on the Beach)
 * 10) Unfair Ball (Fierce Fight! Sonic Baseball Team)
 * 11) Fly Spy (The Beautiful, Mysterious Thief Rouge Arrives)
 * 12) Beating Eggman: Part 1 (Before the Attack on Eggman's Base)
 * 13) Beating Eggman: Part 2 (After the Attack on Eggman's Base)
 * 14) That's What Friends Are For (Chase After the Hero Sonic!)
 * 15) Skirmish in the Sky (Raid of Eggfort, the Flying Fortress!)
 * 16) Depths of Danger (Shoot for the Sunken Ship in the Southern Sea)
 * 17) The Adventures of Knuckles and Hawk (Knuckles! Clenched Fists of Anger)
 * 18) The Dam Scam (Huge Shoot-out on the Savannah!)
 * 19) Sonic's Scream Test (Ghost of the Old Castle, King Boom Boo)
 * 20) Cruise Blues (Departure! Eggfort II)
 * 21) Fast Friends (Speed Match! Sonic vs. Sam)
 * 22) Little Chaos Lost (Summer Vacation Chao Observation Diary)
 * 23) Emerald Anniversary (Mayhem! 6 Chaos Emeralds)
 * 24) How to Catch a Hedgehog (Wild Sonic! Strategic Capture Operation!)
 * 25)  A Dastardly Deed (The Last Chaos Emerald)
 * 26) Countdown to Chaos (The Birth of Super Sonic)
 * 27) Pure Chaos (The Beginning of Disaster)
 * 28) A Chaotic Day (The Puzzle of the Liquid Life Form, Chaos)
 * 29) A Robot Rebels (Amy the Captive)
 * 30) Heads Up, Tails! (The Egg Carrier Battle)
 * 31) Revenge of the Robot (Gamma the Wanderer)
 * 32) Flood Fight (The Scream of Perfect Chaos)
 * 33) Project Shadow (The Secret of Project Shadow)
 * 34) Shadow Knows (Sonic the Fugitive)
 * 35) Sonic's Big Break (Escape from Prison Island)
 * 36) Shadow World (The Threat from Outer Space)
 * 37) Robotnik's Revenge (Space Colony ARK Battle)
 * 38) Showdown in Space (Maria's Wish, Everyone's Wish)
 * 39) Defective Detectives (The Chaotix Detective Agency)
 * 40)  Sunblock Solution (Eggman Corporation)
 * 41) Eggman for President (We Can See the Light!)
 * 42) A Date to Forget (Amy, Love's Escape Journey?!)
 * 43) Mean Machines (Huge Home Electronics Panic!)
 * 44) The Sewer Search (The Ridiculous Epic Spy Battle)
 * 45) Prize Fights (Sonic Battle: Face Off!!)
 * 46) A Wild Win (Sonic Battle: Finale!)
 * 47) Map of Mayhem (Decisive Battle on the Equator!)
 * 48) The Volcanic Venture (Sonic vs. The Monster from Underground)
 * 49) The Beginning of the End (The Day the Earth Stood Still)
 * 50) Running Out of Time (A Morning of Farewells)
 * 51) Friends 'Til the End (Chris' Long Journey)
 * 52) A New Start (Memories of the Wind)
 * 53) The Cosmic Call (A Messenger from the Meteoric Shower)
 * 54) Cosmic Crisis (The Spaceship Blue Typhoon)
 * 55) H2Whoa (The Water Planet, Hydoo)
 * 56) An Enemy in Need (Eggman Enters into the War!)
 * 57) A Chilling Discovery (The Battle of Ice Palace!)
 * 58) Desperately Seeking Sonic (Young Girl's Jungle Trap)
 * 59) Galactic Gumshoes (Chaotix Goes Into Space)
 * 60) Trick Sand (The Return of Shadow)
 * 61) Ship of Doom (The Vessel of Evil)
 * 62) An Underground Odyssey (The Underground Secret)
 * 63) Station Break-In (The Base of Metarex)
 * 64) A Metarex Melee (Sonic vs. Shadow)
 * 65) Mission: Match-Up (Celebration Aboard the Typhoon)
 * 66) Clash in the Cloister (A Critical Situation)
 * 67) Teasing Time (The Black Trap)
 * 68) A Revolutionary Tale (Molly's Dream)
 * 69) The Planet of Misfortune (Planet Marmolim)
 * 70) Terror on the Typhoon (The Fatal Swirl)
 * 71) Hedgehog Hunt (The Incredible Blow)
 * 72) Zelkova Strikes Back (Who Are the Metarex?)
 * 73) The Cosmo Conspiracy (Shadow's Arrival)
 * 74) Eye Spy (The Lost Planet)
 * 75) Angel of Mischief (The Day of Plantations)
 * 76) The Light in the Darkness (Concerns For Sonic)
 * 77) A Fearless Friend (Cosmo's Work)
 * 78) So Long Sonic (The Rebirth of Planets)