Action Comics #872

As Superman attempts to free the other cities and abductees from Brainiac's ship--including the original monster military unit, the Creature Commandos--Lex Luthor experiments on Brainiac himself. Meanwhile, rebuilt and out for blood, Metallo and Reactron attack, and a major turning point for one of our characters sheds a dark shadow across all that is good.

Characters: Agent Liberty, Alura, Black Lightning, Brainiac, Elliot Taylor, Flash (Garrick), G.I. Robot, Green Lantern (Scott), Guardian (DC Comics), Hal Jordan, Hawkgirl (Saunders), Hawkman, John Stewart, Lex Luthor, Lor-Zod, Medusa, Metallo, Mister Terrific (Holt), Power Girl, Reactron (Krull), Ron Troupe, Sam Lane, Starfire, Steel (John Henry Irons), Steve Lombard, Supergirl (Kara Zor-El), Superman, Thara Ak-Var, Ultra the Multi-Alien, Vincent Velcoro, Warren Griffith, Zor-El