In this corner: Deathstroke, suffering from a traumatic brain injury at the hands of Batman! In the other corner: Batman, with Deathstroke's knife in his gut! All of this with the feds invading Wayne Manor-and now they're in the catacombs under the mansion, which lead to the you-know-what-cave! If they're going to escape,  Batman and Slade are going to have to work together.