In New York, mysterious radioactive ooze has mutated four sewer turtles into talking, upright-walking, crime-fighting ninjas. The intrepid heroes and trained in the Ninjutsu arts by their rat sensei, Splinter. When a villainous rogue ninja, who is a former pupil of Splinter, and a brain like alien from dimension x arrives and spreads lawlessness throughout the city, with evil ninjas and mutants it's up to the plucky turtles to stop them.
