Les Tortues Ninja en fuite, Leonardo est perdu sans personne à diriger : il doit arrêter Bishop et ses Méchazoïdes tout en sauvant ses frères.

Pour sauver ses frères, Mikey a besoin de l'aide de Rod, le stagiaire de Bishop. Mais Rod veut quelque chose en échange... être transformé en MUTANT ! Pour réussir, Mikey doit devenir... RESPONSABLE.

Pris entre les Méchazoïdes et le célèbre gang des Dragons Pourpres, la force de Raphaël ne lui servira à rien. Il va devoir se servir de son ingéniosité pour se sortir de ce mauvais pas.

Donnie rivalise d'ingéniosité dans le métro de New-York pour tenter d'échapper aux Méchazoïdes de Bishop. Mais comment contrer une IA qui anticipe tous vos mouvements ?

The origin of the woman called BISHOP! Why does she hate mutants? What is the secret of the Mechazoids? And exactly what happened the night the Turtles fell into Bishop's trap?

The Turtles take the fight to Bishop but she's ready for them... get ready for MECHA-BISHOP! But when the Mechazoids go out of control, can the Turtles save humanity?

The Turtles and Mutanimals are caught in the Storm of the Century! But when a new group of SEA MUTANTS threaten the city... Raph will be forced to use his WORDS to save the day.

Mikey and Genghis Frog are sent into the storm on a supply run to the local market when they encounter the electrifying LEE THE EEL! Now Mikey has to step up and be a LEADER!

When the Lair floods, April goes to save Splinter... but he won't leave the sewer! To make matters worse, the mutant called GOLDFIN comes with a warning... stay out of his way, or else!

The mutant seahorse called MUSTANG SALLY is going to flood the city... and the only thing standing in his way are LEO and Pigeon Pete. Being the leader isn't all it's cracked up to be.

The East River 3 are on the verge on victory! The Turtles and Mutanimals must team up to stop them, but not everything is as it seems... what is the PEARL and why does Goldfin want it?