"The Justice-Doom War approaches! This is the culmination of the Legion of Doom's master plan, and some may not survive. Eons ago, the Monitor, the Anti-Monitor and the World Forger stopped the rise of Perpetua. Now Lex Luthor is trying to empower Perpetua, turning the world toward doom. The Justice League must race through the past, present and future to gather pieces of the Totality if they want to stop Lex Luthor's plan from coming to fruition. But the Legion of Doom will stop at nothing to unleash Perpetua on the Multiverse."-- Provided by publisher.