Teenage Mutant Ninja Turtles is an American animated television series developed by Ciro Nieli, Joshua Sternin, and Jennifer Ventimilia for Nickelodeon, based on the characters created by Kevin Eastman and Peter Laird. The series begins with the Turtles emerging from their sewer home for the first time, using their ninjutsu training to fight enemies in present-day New York City. The series ran in the United States from September 28, 2012, to November 12, 2017.