Batman sends a new squad of bat-robots against Black Mask. The robots are turned against their former master when Black Mask hacks into them. Batman prepares to fight the robots with his dog partner, Ace. They are also joined with the kindly robot prototype "Proto".

It is the story of Batman's retirement and his marriage to Catwoman. Bruce Wayne now hopes that his son Damian will follow in his footsteps, and his confidence in him will be put to the test.