When four pet turtles were bathed in ooze, they began to mutate and became the Teenage Mutant Ninja Turtles. Raised in the New York City sewers by their foster father and martial-arts Master, Splinter, Leonardo, Raphael, Donatello, and Michelangelo wage war against crime. They stop evildoers in all forms, whether barbaric gangs, lowlife crooks, deranged cyborgs, or even the crime syndicate The Foot and the ancient Rank army, each led by their archrivals, The Shredder and Dragon lord