When a foreign exchange student arrives at Justice Prep, Diana is excited to greet him! While Clark (Superman) is also curious to meet this shy student, Bruce (Batman) is wary. Bruce's suspicions are warranted when they are unable to find any record that this student even exists. When the three confront him, an accident transports them all the way to the 31st century! Now Diana, Clark, and Bruce get to meet the heroes of tomorrow ... the Legion of Super Students!