Donatello breaks into a secret Kraang detention center to rescue Kirby O'Neil and encounters a dangerous mutant foe!
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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.
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.
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 escaping into the city.
Leonardo meets a beautiful and dangerous female ninja who tries to lure Leonardo to the dark side.
This holiday season, Nickelodeon crowns the new King of Wrap!
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