While experimenting with a Matter Transporter in his secret hideout, Shredder sends Rocksteady and Bebop to a nearby garbage dump. Through a series of mishaps, Rocksteady and Bebop find themselves in the sewers and in the Turtles' Lair.
The Turtles contact April O'Neil and lure her with the promise of a great news story, but when she arrives she discovers that they need a new TV to replace the one that Rocksteady and Bebop destroyed during their encounter. It seems the "boys in green" are addicted to sci-fi movies and were in the middle of a marathon when Rocksteady and Bebop dropped in.