When Karai is brainwashed, she begins hunting the Turtles. ...

Michelangelo meets Mondo Gecko, a skateboarding mutant, and tries to save him from being condemned to a life of crime. ...

The Shredder kidnaps and experiments on the Mighty Mutanimals. ...

A garbage man is accidentally turned into a garbage-composed Mutant when the Turtles face off against Bebop and Rocksteady on one of their missions. The Mutant, dubbed Mu ...

Casey Jones thinks he can take on the criminal underworld on his own, but soon discovers that he is in over his head. ...

Leo is suspicious when Slash emerges leading a team called the Mighty Mutanimals; the Turtles must brave the bizarre world of Dimension X to save the enslaved people of N ...

The Turtles meet some old frenemies, Slash and Leathered, and try to go to Demension X to stop the Kraang for firing a missile to mutate everyone on Earth. While April O' ...

Donnie finishes a new batch of Retro-Mutagen in hope of saving Karai; the Turtles are hunted by Shredder's new henchmen, Bebop and Rocksteady. ...

As the Turtles search for Karai, they must deal with a city filled with Kraang and Shredder. ...

The turtles return to New York, facing the Kraang and Kraang Prime for a rematch to see who New York really belongs to. ...

Leo takes the Turtles to train in the woods in an advanced ninja ritual; the Turtles must overcome their weaknesses and face their enemies to become a true ninja. ...

When Casey, Raph, Mikey, and Donnie are captured by a new mutant, April and Leo must overcome disabilities in order to save them. ...

When Casey and Donatello work together to build a hot rod, a mutant challenges them. ...

The turtles get trapped in their dreams by Dream beavers. They can't escape except with the help of a man. ...

Mikey runs away and befriends a mutant frog. Only to learn the frog and his family have nefarious plans. ...

The turtles find an old alien spacecraft that is connected to April's past. ...

When the Turtles discover Bigfoot in the woods, Donnie befriends it and insists they protect it from a hunter. ...

After 3 months of being in a coma,Leo finally wakes up. Raph tries to train him back to normal, but Donnies medicine makes Leo too sick. Leo drops the medicine and create ...

Leo and Donnie disagree about their plan to stop the Kraang invasion. When Leo makes a critical mistake, he is separated from the team and Donnie must step up as a leader ...

After Mikey gets trapped in Dimension X to try and save Leatherhead, his brothers come to his rescue, but they discover that their little brother has changed. ...

Donnie becomes increasingly jealous of April and Casey's relationship; April is kidnapped by an evil spirit who intends to drain her powers. ...

Leo stages a rescue for Karai against Splinter's wishes. ...

When Raph accidentally damages a Kraang machine, it allows him to switch brains with a Kraang. Now he must find a way to convince his brothers and Splinter that it's real ...

As Leo tries to convince the team to attempt to rescue Karai, Anton Zeck steals Shredder's helmet. ...

When Tiger Claw returns, he vows to hunt and destroy the turtles. Meanwhile, Karai finds out the truth about her mother and real father, forcing her to make a life changi ...

Michaelangelo must battle Pizza Face, a mutant pizza that eats humans, in order to save his family. ...

Raphael is worried about Casey's ability to handle big mutant threats; Raphael and Casey cross the paths of Slash and his new partner. ...

The Turtles create a retro-mutagen to help April's father;Stockman-Fly kidnaps April. ...

When the Turtles play a fantasy LARP game to get their mind off of things, they must separate the difference between fantasy and reality. ...

Leonardo considers asking Splinter for help while facing Shredder's new assassin; Donnie must put aside his rivalry with Casey in order to uncover a Kraang plot. ...

The Rat King returns and tries to take control of Splinter again. Meanwhile, April leaves a cat with Mikey and he turns it into a mutant. ...

When Donnie upgrades Metalhead's artificial intelligence, he must decide if he can trust a sentient Metalhead... or if he has created a new foe. ...