Batman / Superman: World's Finest #21

MARK WAID CONTINUES HIS RETURN TO THE WORLD OF KINGDOM COME! Superman and Batman, having followed Boy Thunder to Kingdom Come, find themselves and that world on a path to an apocalyptic future. Can the World’s Finest team prevent the transformation of Boy Thunder into the villainous Magog, or is his fate sealed?

Characters: Ace the Bat-Hound, Alfred Pennyworth, Alloy (DC), Aquaman, Atom (Palmer), Atom-Master II, Batman, Batman (Kingdom Come), Batwoman (Kingdom Come), Black Canary, Blue Beetle (Kord), Booster Gold, Captain Atom, Captain Marvel (DC), Cyborg, Dick Grayson, Donna Troy, Etrigan, Firestorm (Raymond), Gog, Green Arrow, Hal Jordan, Hawkgirl (Saunders), Huntress (Kingdom Come), John Stewart, Magog, Martian Manhunter, Metamorpho, Nightshade (Kingdom Come), Peacemaker, Peacemaker (Kingdom Come), Plastic Man, Raven, Red Tornado, Sonia Sato, Starfire, Supergirl (Kara Zor-El), Superman, Superman (Kingdom Come), Swamp Thing, Thom Kallor, Vigilante (Kingdom Come), Wally West, Wonder Woman, Wonder Woman (Kingdom Come), Zatanna