"Reign of Doomsdays, Part 1"
*We can't tell you much about this issue without ruining some of ACtion Comics #900's surprises, but suffice it to say, Doomsday's back – and you've never seen him like this before! Doomsday's first appearance brought about the "Reign of the Supermen," where four characters – Superboy, Steel, Cyborg Superman, and Eradicator – came onto the scene to try to fill Superman's shoes. Now, with "Reign of Doomsday," it looks like Superman might need to fill their shoes! *Source: dccomics.com
Includes a preview of Brightest Day Aftermath: The Search for Swamp Thing #1.