Children's animated adventure following the Ninja Turtles as they come face-to-face with their counterparts from another world. Leonardo (voice of Michael Sinterniklaas), Michelangelo (Wayne Grayson), Donatello (Sam Riegel) and Raphael (Greg Abbey) discover that other versions of themselves have been accidentally teleported into their world from another dimension. Villains Shredder (Scottie Ray) and Krang (Braford Cameron) have also come through the portal, meaning all the turtles must team up together to put a stop to their enemies, a feat which leads them on a journey into the alternate universe.