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.