METALLO ATTACKS! The crown jewel of Superman's new Metropolis is in ruins, and the increasingly violent Blue Earth movement is keeping the entire Super-Family on their toes. Meanwhile, Metallo's powerful new body is evolving in unforeseen, horrific ways. As Metallo’s life and sanity continue to unravel, he sets out to capture the only person who can help him: John Henry Irons. It's Steel versus Metallo as the new era of Action Comics continues!