Damian Wayne is having a hard time coping with his father’s “no killing” rule. Meanwhile, Gotham is going through hell with threats such as the insane Dollmaker, and the secretive Court of Owls.

Robin is sent by Batman to work with the Teen Titans after his volatile behavior botches up a Justice League mission. The Titans must then step up to face Trigon after he possesses the League and threatens to conquer the world.

Batman, Batgirl and Robin forge an alliance with the Teenage Mutant Ninja Turtles to fight against the Turtles’ sworn enemy, The Shredder, who has apparently teamed up with Ra’s Al Ghul and The League of Assassins.