While Superman responds to the global chaos caused by Leviathan, Metropolis faces a local menace: the invisible mafia and its metahuman enforcer, the Red Cloud. Plus, Lex Luthor returns to Metropolis offering villains greater power. With enemies on all sides, Superman needs the help of new superhero Naomi! Event Leviathan meets "Year of the Villain" in these stories from Action Comics #1012-1016.