In the alternate future timeline of the Adult Legion of Super-Heroes, the good fight continues with new members such as Lexor Man and Mr. Mxyztic. But even grown-up Legionnaires can be fooled, as shown when they are manipulated by Lightning Lord and Saturn Queen into letting them go free. Meanwhile, a new threat is on the horizon when a rogue Coluan with thirteenth-level intelligence who calls himself the Computyrant begins reassembling the Legion of Super-Villains!