Justice League of America [Batman [Dick Grayson]; Donna Troy; Jade; Jesse Quick; Supergirl; Congorilla (cameo)]; Crime Syndicate of Amerika [Owlman; Superwoman; Power Ring; Johnny Quick; Ultraman]; Green Lantern (Tangent world); Faust; Green Lantern [Kyle Rayner] (flashback cameo); Red Hood [Jason Todd] (flashback cameo); Captain Marvel (flashback cameo); Mary Marvel (flashback cameo) ; Captain Marvel Jr. (flashback cameo); The Atom (Tangent world) (flashback cameo); the Flash (Tangent world) (flashback cameo); Dr. Impossible; Tender Mercy; Neon Black; Hunter; Bluejay; Alexander Luthor (corpse only); Omega Man
Green Lantern from the Tangent world warns the Justice League that the Crime Syndicate is destroying worlds, having just destroyed hers. Just then, the Crime Syndicate attacks the JLA in the Hall of Justice. Dr. Impossible and his gang also invade the Hall of Justice to recover the body of Alexander Luthor. Dr. Impossible then teleports in the Ressurection Machine. Using the energies of three humans from three different earths -- including a captive Bluejay-- Dr. Impossible attempts to ressurect Darkseid, but ressurects the Omega Man instead.