The United Planets requests help from Colu to investigate a massacre on Anotrom. A trio of youths save R. J. Brande from an assassination attempt and founds the Legion of Super-Heroes and inducts their fourth member, Triplicate Girl. Tinya appears from Bgtzl to bring the young Coluan, Brainiac 5 a warning.
While viewing the progress on their new headquarters, the Legion must fight off another assassination attempt on R. J. Brande. Meanwhile, Brainiac 5 and Phantom Girl start to work together on Anotrom and Gim Allon announces a change in his career plans to his father. Back on Earth, yet another attack on Brande convinces him that his Legion needs more help, and the United Planets Security Directorate comes to the same conclusion.
After Phantom Girl heads for Earth, the wormhole on Anotrom moves and expands, allowing a starship to emerge, but Brainiac 5 uses an ancient tactic to destroy it. Meanwhile, Phantom Girl delivers her message and joins the Legion, as it starts its first membership drive
After three more recruits are added to the roll, and yet another attempt is made on R. J. Brande's life, the Legion prepares to head into space and the wormhole over Anotrom. But Phantom Girl suggests they consider another addition to the team first.
Legion of Super-Heroes [Lightning Lad; Saturn Girl; Cosmic Boy; Phantom Girl; Colossal Boy; Triplicate Girl; Invisible Kid [Lyle Norg]; Chameleon Boy; Ultra Boy]; Clark Kent; Brainiac 5; Anisa; Zarl Jax; Mycroft; R. J. Brande; Admiral Allon; The Time Trapper
After an unsuccessful attempt to contact Superman in the past, the Legion heads to the wormhole near Anotrom, while Brainiac 5 and Invisible Kid work to repair and improve the Time Bubble. Meanwhile, R. J. Brande faces a new kind of danger in an unexpected form.
Legion of Super-Heroes [Colossal Boy; Lightning Lad; Ultra Boy; Saturn Girl; Cosmic Boy; Triplicate Girl; Chameleon Boy; Brainiac 5; Phantom Girl; Invisible Kid; Shrinking Violet]; Superboy [Clark Kent] (cameo); R. J. Brande; Mycroft; Zarl Jax; Anisa; Admiral Allon; The Time Trapper
Chameleon Boy protects Brande from the latest attack on his life, while Brainiac 5 figures out how to destroy the wormhole near Anotrom. Back on Earth, the power behind the attacks on Brande makes his presence known, but finds himself drawn back through the imploding wormhole. In the aftermath, the Legion takes on some new members and looks to the future.