The Turtles find themselves being hunted by a new threat -- another mutant turtle called Slash, who has a personal vendetta against the brothers.

Raphael is worried about Casey's ability to handle big mutant threats especially when they meet Slash again and discover he has a partner of his own, the Newtralizer.

When Casey and Donatello bond while building Casey's new hot rod, the bond is challenged by a hot-rodding mutant.

Leonardo decides to sneak into Shredder's lair alone, and winds up facing the biggest mutant threat yet.

A shark-like bounty hunter is hired by Lord Dregg to destroy the turtles, who choose to hide out in an abandoned space station.

When Raphael loses his fighting mojo, he must overcome his feelings to save his brothers from certain doom.

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Donnie's grudge with Don Vizioso threatens the Turtle's newest mission.

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An older and weathered Raphael battles road gangs in a post-apocalyptic mutant wasteland.

An older, weathered Raphael battles road gangs in a post-apocalyptic mutant wasteland.