After the catastrophic events of Sonic #100, Sonic and his friends find themselves living in a world that bears no resemblance to the one they've always known. Who - or - what is responsible?
Can it be so? Has Knuckles aligned himself with Dimitri and the Dark Legion? And can he really be serious about reversing history without considering the repercussions? Could it possibly tie into the intrigue Sonic and his friends have recently found themselves in?
The Freedom Fighters have succeeded in saving the roboticizedMobians, but Nate Morgan is still trapped inside the energy dome around Robotropolis. Sonic the Hedgehog attempts to attack the energy dome but is fired back. The scene suddenly changes to a Sonic the Hedgehog OAV were Sonic and Miles "Tails" Prower are fighting Metal Robotnik to gain access to the Land of Darkness and to save Sara from Dr. Robotnik. Metal Robotnik aims his cannons at Sonic and Tails when Knuckles the Echidna smashes though the robot's head. Suddenly many more Metal Robotnik's arrive. The scene changes to Castle Acorn were Knuckles is being knighted by King Maximillian Acorn and is engaged to Sally Acorn. Sonic flees from the scene unhappy and is talking about it with Uncle Chuck who is de-roboticized. The scene changes again to a SatAM Universe were Dr. Robotnik has Sally and Sonic cornered on a cliff in Robotropolis with SWATbot. He asks for the Flora Terminus file back, when Sally and Sonic jump off the cliff to be caught by Antoine D'Coolette, Rotor and Bunnie Rabbot in an aircraft. Sally admits that something isn't right when the scene changes again, this time to Sally's funeral. Sonic remembers the final fight with Robotnik and Sally not really being dead. He remembers that he had rescued the roboticized Mobians when the scene changes back to outside Robotropolis. Knuckles was using his powers uncontrollably at the time. Nate Morgan appears to explain about the shifts when again, he changes into Uncle Chuck. As the rest of the Freedom Fighters have no idea of what has happened, they head back to Knothole, with the rescued Mobians.
Chaos Knuckles has agreed to side with Dimitri in order to control his chaos powers. Julie-Su disagrees with Knuckles and tells him that he shouldn't trust the Dark Legion. Knuckles finds out from Dimitri and Lien-Da that there is no limit to what he can do. He decides to go back in time to destroy the comet that caused Angel Island to float in the first place. The triggered events causes havoc to the world, when Knuckles wakes up and realizes that Dimitri had him trapped in a machine the entire time. Dimitri has ordered Knuckles to listen to him or else the world could suffer.