Adventure Comics #316

While going through criminal records for one of their current missions, the Legion comes across a record identifying their own member Ultra-Boy as an escaped criminal. Learning that it's true, the Legion puts it to a vote and Ultra-Boy is expelled from the Legion. Enraged that he's been expelled, Ultra-Boy tells the Legion that he will now work against them, and flees the planet to escape from them.

The Legion tries to take in Ultra-Boy for his crimes, but each time they track him down, Ultra-Boy is able to evade capture. While fleeing the Legion, Ultra-Boy aids a number of humans who have had their minds placed into alien creatures before resuming his escape from the Legion. When hiding out on the phantom planet, Phantom Girl manages to track him down and warn him of the Legion's impending arrival, and they are captured by the aliens responsible for the rash of crimes that the Legion was investigating before going after Ultra-Boy.

The aliens, having heard of Ultra-Boy's expulsion from the Legion's ranks offer him a chance to join them, and Ultra-Boy aids them in incapacitating the Legion. However, Ultra-Boy suddenly turns on his alien benefactors and captures them and frees the Legion. Ultra-Boy and Cosmic Boy then reveal that the entire episode was a ruse, where they planted evidence making it appear as though Ultra-Boy was a hunted criminal to lure out the real criminals. With the culprits caught, the Legion reinstate Ultra-Boy as one of their members.