The continued adventures of the four adolescent mutated turtles gifted in the art of the ninja, as they attempt to stop a mysterious evil that threatens to end the world.
After the defeat of their old arch nemesis, The Shredder, the Turtles are needed more than ever, but Raphael, Donatello, and Michelangelo have become lost and direction less. Leonardo has gone to Central America, on the orders of the martial arts master and father figure Master Splinter, for training. Donatello and Michelangelo have started small businesses in Leonardos absence. Meanwhile, strange things are happening in New York City. An army of ancient creatures threatens to take over the world and the Turtles must unite again to save it.