The Legion of Super-Heroes battles foes who strike without reason or warning in order to clear the name of the father of one of their own! But in a case where nothing is as it seems, will the trail lead them from one dying world to another, in one of the strangest Legion adventures ever?
A handful of Legionnaires and a visiting Supergirl are all that stand between Earth and an invading army led by Mordru, one of their deadliest foes! But even if by some miracle they overcome the powerful wizard, can the Legionnaires thwart the curse of Mordru? Guest starring the Martian Manhunter!
Looking into the case of a missing person who was also a rejected Legion applicant leads Sun Boy to solve another mystery entirely! But as he looks more deeply, he ends up discovering an enemy from his past who is a very real threat, not only to Metropolis but to the entire world!