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.
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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.
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!
Michelangelo is tired of being the “runt of the litter.” But when he fools around with some mutagen, he gets a dangerous infection that is mutating out of control.
Something gooey is taking over Bikini Bottom... but is the goo all that bad?
Meet these two quazy ducks and go inside their riDUCKulous, booty-shakin' adventures.