A discovery on Pluto leads the Legion of Substitute Heroes and guest star Cosmic Boy to face a strange and tragic menace from a thousand years in the past! But will Prometheus of the Hybrid end up being a hero or a villain in this new era?
Science Police Officer Gigi Cusimano just can’t seem to catch a break. Temporarily assigned as liaison officer to the Legion of Substitute Heroes, currently on the orbiting hospital called Multivac, she finds herself hospitalized when exposed to a combination of Infectious Lass’ germs and Porcupine Pete’s quills! But the worst is to come when the Subs decide to hold tryouts to recruit new members, with typically disastrous results! Introducing a new team lineup for the Subs!
The Dark Circle returns from a long period of dormancy to strike again! But as they begin using germ warfare, can the Legion of Super-Heroes stop them in time to prevent plagues and death on a massive scale? And are the Legionnaires being distracted from the real threat? Guest starring Dev-Em!
It’s a race against time as the Legion of Super-Heroes tries to learn how an odd theft of soil-digging machines could threaten the freedom of Earth! Meanwhile, Saturn Girl returns to the team to take over for the injured Tellus. And just who is thwarting Shrinking Violet’s love life? Featuring the return of the Legion’s old foes the Emerald Empress and Modulus, and introducing the new Reflecto!
When a few members of the Legion of Substitute Heroes commit a daring robbery, the Legion of Super-Heroes must face the possibility that the Subs have gone bad! However, it soon becomes evident that evil Legionnaires from the parallel universe of Earth-Three have invaded this universe, and they will stop at nothing to get what they want! Can the Legion defeat their ruthless counterparts, even with the help of the heroic counterparts of the Fatal Five? Introducing the Legion of Ultra-Villains and the Faultless Five!