METALLO ATTACKS! Chaos consumes the frontier town of Smallville as Lex Luthor, riding in his steam-and-Kryptonite-powered Metallo robot, brings destruction in his search for a mysterious artifact that could grant him power beyond his wildest dreams. Meanwhile, Batman, Superman, and their posse of strange new heroes band together to put a stop to his reign of terror and attempt to prevent Luthor from accessing this ancient power. But will the world be better off with this relic in the hands of those who do not know how to channel its power properly? Find out in this can't-miss issue!