Obsessed with defeating the Legion, the Trapper observes the moment in time that gave birth to the team: the attempted assassination of billionaire R. J. Brande, which is foiled by Rokk Krinn (Cosmic Boy), Imra Ardeen (Saturn Girl) and Garth Ranzz (Lightning Lad).
In Metropolis, the Legion's three founders, now retired from active duty, enjoy an evening at the Ranzz home when they are attacked by the Time Trapper’s militia.
Sneaking into the Time Institute, the three founders seek the aid of honorary Legionnaire Rond Vidar in obtaining a time-travelling device, without revealing anything about Graym's kidnapping.
Cosmic Boy and Saturn Girl escape from their cell and — after a perilous journey through the Citadel — discover baby Graym, completely unharmed.
After a series of illusions fails to break the Legionnaire, the Trapper reveals that he caused the shuttle accident that killed Lightning Lad's parents years earlier.