With countless cameos from timeless villains and a major force of evil at work, Superman and Batman are up against some of their toughest battles yet! Saving each other, fighting each other, working with unexpected allies, the superhero duo see it all in this new collection of Mike Johnson and Michael Green's acclaimed run with the series! Among their newest and gravest challenges are a shape-shifting alien who is dead-set on continuing a thousand-year-old war against Superman's home planet of Krypton, and zealous Superman followers looking to make human sacrifices in his name back on Earth! SUPERMAN/BATMAN VOL. 6 collects SUPERMAN/BATMAN #64-73.