Batman meets the Joker (Jack Nicholson) on the street, but other than his Joker, and thus learns that there are several dimensions and must form a group of dimensional Batmans to defeat several dimensional villains that Owlman has brought in to conquer Batvers. A team of Batmans and Villains from past movies compete, Batmans must capture all the Villains and send them back to their universes.
