Superman (Rebirth) #15 Andrew Robinson Variant Cover

"MULTIPLICITY” part two! Superman and New Super-Man fight alongside an army of Supermen from across the Multiverse against the threat trying to wipe them all out of existence! Plus, Jon and his neighbor Kathy investigate a hidden horror that seems to be growing in their town.

Superman and the Justice Incarnate want to warn other Supermen, in order to do that they travel through the Multiverse and gather all the Supermen. Some are willing to listen, whilst others are stubborn and put up a fight. They eventually succeed and return to their special ship called the Ultima Thule. Superman makes sure all other Superman are safe and teleports them away while he remains on the ship, waiting for Prophecy.