ACTION COMICS VOL. 1 is here, as a part of DC Rebirth! Superman returns to Metropolis just in time to meet the city of tomorrow's newest protector: Lex Luthor. But it's not long before these dueling titans meet someone unexpected -- the new Clark Kent! The two arch-enemies must put aside their differences and face the common threat of Doomsday, as Jimmy Olsen and the Planet staff try to uncover the truth: who is the man claiming to be Clark Kent?