Reporter April O'Neil purchases an ancient Japanese scepter that can cause those simultaneously holding it in different centuries to switch places in time. When she is transported to 16th-century Japan, her crime-fighting pals, the Teenage Mutant Ninja Turtles, pursue her. After landing in the past, the Turtles learn April has been captured by the villainous Lord Norinaga. To rescue her, they must team up with rebel leader Misu.