In"Teenage Mutant Ninja Turtles: Out of the Shadows," the four brothers, Leonardo, Donatello, Michelangelo, and Raphael, return with their master Splinter to save New York City once again. This time, they face an even more dangerous enemy named Shredder who has escaped from prison and joined forces with a mad scientist Baxter Stockman and a group of villainous mutants. With the help of their human friends April O'Neil and vigilante Casey Jones, the turtles must stop Shredder's diabolical plan that threatens to destroy not only the city but also their existence as fearless ninjas.