A time-lost Kryptonian ship, its crew murdered. A missing escape pod. A mysterious attack by a powerful assassin on an insignificant reporter named Clark Kent. These are the clues in a mystery that will take all of Batman's detective skills and Superman's incredible strength to solve. A war from Krypton's long-ago history has come to Earth, with a warrior determined to wipe out every remaining Kryptonian. The battle is to the death, and if the adopted...