The Teenage Mutant Ninja Turtles make their return in a brand-new animated series on Nickelodeon! Emerging above ground for the first time on their fifteenth birthday, the iconic turtles—Leonardo, Michelangelo, Raphael, and Donatello—discover that life outside the sewers is not quite as they imagined. Together, they must unite as a team to confront new adversaries threatening to seize control of New York City.