S1 E1 • Sur la piste des Tortues

Les Tortues rencontrent pour la première fois April O'Neil. Splinter lui explique son origine et celle des Tortues.

S1 E2 • À la recherche du technodrome

The Shredder kidnaps Splinter in an attempt to lure the Turtles to his own cause. In order to rescue Splinter, the Turtles must enter the Shredder's mobile fortress, The Technodrome and brave it's dangerous weaponry. Even if they can, they must still confront The Shredder himself, who is armed not only with the nature of their origin, but also with his own mutated henchmen, Bebop, and Rocksteady.

S1 E3 • Les mangeurs de rats

Le scientifique Baxter Stockman a créé un robot chasseur de rats: Mouser. Shredder développe alors une grande production de ces robots pour se débarasser de son ennemi Splinter.

S1 E4 • Les visiteurs de la Dimension X

Grâce à l'équipement de Baxter, les Tortues se construisent un véhicule armé pour affronter Shredder. De son côté, Shredder ouvre un portail dimensionel dans l'espoir de récupérer de puissantes armes.

S1 E5 • Un vrai combat de ninja

Shredder lures Splinter into The Technodrome, this time with the promise that a weapon in his possession can restore the sensei to human form. The Turtles confront a giant-sized Krang, now in a new body, in the heart of New York City. The five then battle the invading Dimension X troops inside The Technodrome, resulting in the banishment of the fortress, and it's insidious occupants, into Dimension X itself.