Teenage Mutant Ninja Turtles - S06

When the Teenage Mutant Ninja Turtles receive Mutastones from Crys-Mu, the spirit of light, they gain the power to become Super Turtles for three minutes at a time. At the same time, their enemy Shredder and his henchmen, Bebop and Rocksteady, find the Dark Mutastone, turning them into Devil Shredder, Supermutant Bebop, and Supermutant Rocksteady. But the Turtles have another secret weapon-by joining forces, all four of them can merge into their most powerful form: Turtle Saint.