BEGIN SLIDESHOW Rise of the Teenage Mutant Ninja Turtles renewed before its Season 1 premiere Nickelodeon, the number-one network for kids, announced today that Rise of the Teenage Mutant Ninja Turtles, the reimagined 2D-animated series, has been greenlit for a second season with 26 episodes. The action-comedy follows the band of brothers, Raph, Leo, Donnie, and Mikey, as they discover new powers and encounter a mystical world they never knew existed beneath the streets of New York City.