During a confrontation with Krang's portal device, the Turtles and their allies, as well as Shredder and the Foot are transported to Gotham City. Batman and his team agree to help the Ninjas get back home but before that, they must retrieve Shredder and the Foot Clan, who have teamed up with Ra's Al Ghul and the League of Assassins, before they terrorize all of Gotham.
