April O'Neil, ace reporter for Channel 6, investigates recent break-ins, allegedly by Ninjas. Resulting in the thefts of numerous technologies, however, a chance encounter with a gang of thieves soon leads her to a bigger story when she is saved from the criminals by four mutant ninja turtles. The Turtles take April back to their lair, and, after getting better acquainted, April learns they are good hearted mutants. They decide to investigate the thefts together and their efforts lead them into an encounter with the mysterious ninjas, The Foot Clan, and their leader, Shredder.