Watch Teenage Mutant Ninja Turtles 2003 Season 4 full episodes online free watchcartoononline.
Synopsis: When four pet turtles were bathed in ooze, they began to mutate and became the Teenage Mutant Ninja Turtles. Raised in New York City sewers by their foster father and martial-arts Master Splinter, Leonardo, Michelangelo, Donatello and Raphael wage war against crime. They stop evildoers in all forms, whether barbaric gangs, lowlife crooks, deranged cyborgs, or even the crime syndicate The Foot, led by their archrival, The Shredder.