Four years have passed since the "Lost Zero" incident. Keith Max still believes in the survival of Dino Albani, who was presumed dead, and continues to pursue him. Meanwhile, Brad Beams keeps a close eye on Keith's precarious actions, striving to find answers to his own doubts. At this time, a new "Eclipse" threat creeps into the city. In the midst of this chaotic situation, standing before the "Heroes" is "Zero," with whom they have fought countless times. As they confront each other once again, the lost time begins to move violently once more.