April tries to resume a normal teenage life, but when Karai starts hunting her again, April realizes she may have put her new friend Casey Jones in danger as well. ...

Donatello obsessively experiments with mutagen in a bid to find a cure for April's mutated father. Unfortunately this puts April in danger from a new threat--Mutagen Man! ...

While tracking mutagen, the Turtles bring a mutated squirrel back to the lair. When it starts multiplying, the Turtles must hunt the squirrel mutants and prevent them esc ...

When Shredder teams with the Kraang to receive a batch of mutagen, the Turtles' problems only get worse--even putting their friendship with April at stake. ...

As the Turtles make a desperate assault on TCRI to shut down an alien portal, they find themselves engaging in the most difficult battle yet. ...

As the Turtles make a desperate assault on TCRI to shut down an alien portal, they find themselves engaging in the most difficult battle yet. ...

Donatello breaks into a secret Kraang detention center in order to rescue Kirby O'Neil. But when he discovers they are trapped inside with a deadly mutant prisoner, he re ...

When Shredder schemes to create a fearsome army of mutants, the Turtles have no choice but to rely on the help of the newest recruit to the Foot Clan: The Pulverizer! ...

While the Turtles are infiltrating an undersea Kraang base, the Foot Clan attempts to capture April, forcing her to fend for herself in a battle of wits against Karai. ...

After witnessing the Kraang in action, Karai realizes the seriousness of the alien threat and approaches the Turtles to propose an alliance. ...

As the Turtles try to foil a Kraang invasion plot, they are hunted by a giant, indestructible cockroach. ...

While breaking into the hostile environment of TCRI headquarters, the Turtles discover the true intent of the Kraang and resolve to stop the alien invasion once and for a ...

The Turtles meet their first fanboy when a teenage wannabe hero decides to fight crime and dress up as The Pulverizer. ...

The Turtles get their first taste of high school when April's school project draws Kraang attention. ...

Michelangelo befriends an unstable mutant alligator who possesses a strange piece of Kraang technology, but the other Turtles aren't sure whether Leatherhead is a friend ...

The Turtles must defend their home in the sewers when Bradford tries to destroy it with a dangerous chemical. ...

After April receives a warning from her imprisoned father, she and the Turtles embark on a mission to save him and stop the Kraang from detonating a mutagen bomb in the c ...

Weary of using his simple bo staff to fight the technologically advanced Kraang, Donatello creates Metalhead, a remote-controlled robot turtle to fight in his place. ...

The turtles are caught on a mobile phone's camera and must retrieve it. This is complicated by the phone's obnoxious owner, who constantly provokes Raph into losing his t ...

When Splinter allows his teenage sons, the Mutant Ninja Turtles, to visit the surface for the first time, they discover that the surface world isn't as simple as it first ...

When Splinter allows his teenage sons, the Mutant Ninja Turtles, to visit the surface for the first time, they discover that the surface world isn't as simple as it first ...

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