The Legion of Super-Heroes defeat Grimbor but now face a bigger mystery: Who is Reflecto? In the battle against Grimbor, it was revealed that Reflecto was actually Superboy, however he believes he's actually Ultra Boy. They try to get to the bottom of this mystery by having Superboy and a small group of Legionnaires traveling into the 20th century for answers. There they find that Superboy apparently tried to steal nuclear weapons and is treated like an enemy now. Superboy still has no recollection of these events and suddently the Time Trapper reveals himself, indicating that he has a hand in this affair. Time Trapper then traps Superboy and the Legion in the 20th century.