The Legion faces its greatest challenge yet when a rival team reveals itself, composed of an ultra-powered boy, a master of many ancient fighting arts, a wielder of tremendous heat, and a rampaging beast.

Live Wire joins the Workforce, a team created by Leland McCauley to compete with R.J. Brande's Legion of Super-Heroes, after he quits due to legality issues. Meanwhile, the Legionnaires answer a plea for help from a prison located in a sun. Things seem to be going well until they are attacked by a spacecraft, causing the power to die in the prison eventually, letting loose all the criminals.