Leo goes behind Splinter's back when he stages a rescue for Karai, whose desire for revenge against Shredder brings about grave consequences for them all.
Leo, worried about Karai, tries to convince the others to rescue her, while a master thief steals Shredder's helmet, and it falls into the Turtles' unsuspecting hands.
Mikey discovers that a new mutant is trying to attack and capture people using living pizzas, but he struggles to convince the others who don't believe him.
After encountering mutants and ninjas, Casey Jones decides to take on "pure evil" alone. When he meets Raphael, the two hot-headed fighters must put their dislike for each other aside and work tog...
Facing Shredder's deadly new assassin, Leo must decide whether to risk his brother's lives or ask for Splinter's help. Donnie must put aside his rivalry with Casey in order to uncover a new Kraang ...
Raphael loses his temper when he is insulted by a New Yorker named Vic. When Vic catches the Turtles on video, the Turtles must get the phone back or risk the possibility of their existence becomin...
Leo, worried about Karai, tries to convince the others to rescue her, while a master thief steals Shredder's helmet, and it falls into the Turtles' unsuspecting hands.