In the final battle between science represented by the Legionnaires and magic represented by the archmage, neither side escapes without loss. When the Legionnaires learn what must be done in order for the archmage to be defeated, can they possibly let the inevitable happen? And just what will happen to the universe in the impending chaos?
Final issue. Restarts in Legion of Super-Heroes (1989) #1 in November. This issue begins the "Five Year Gap".