DARKSEID'S LEGION ATTACKS SUPERMAN, AND HIS ONLY HOPE DEPENDS ON FINDING A TIME-LOST HERO AND THE HELP OF...SUPERBOY-PRIME? Can the Man of Steel and two unexpected allies learn what happened to the real Legion of Super-Heroes in time to secure Earth's future? And who will protect present-day Earth when Superman enters the tournament to become King Omega? Collects the bestselling SUPERMAN #28-35.