"In a critical time for Metropolis, the increasingly violent Blue Earth movement is keeping the entire Super-Family on their toes. The opening of the new Steelworks tower--meant to be a bastion of scientific innovation--has drawn unwelcome attention from a supercharged Metallo. Where did he get this newfound super-strength, and why does he seem hell-bent on revenge? Is Lex Luthor's jealousy to blame for this assault on the city, or are there other factors at play? And when the Super-Twins find themselves alone against Metallo's undead army, the Necrohive, it's an epic rematch for the ages. Collects the lead stories from Action Comics #1051-1056."