Batman / Superman Vol. 2: World's Deadliest
Batman and Superman are the greatest heroes the world has ever known—and you can't accomplish that without making some terrifying enemies. General Zod is on a mission to resurrect the bottle city of Kandor, and he's ready to obliterate anyone in his path—leading Ra's al Ghul to attempt to save his Lazarus Pits from Kryptonian chaos, with Batman and Superman caught in the middle! Plus, the Atomic Skull's untimely death leads to a deadly mystery of grisly experiments, and Batwoman and Steel face robotic rogues!
Collects Batman/Superman #7-15 and Batman/Superman Annual #1.