Saturn Girl, Chameleon Boy, Dream Girl and Brainiac 5 find themselves having been trapped on a prison planetoid for the past two weeks with no memory of how they got there. They devise a plan to release everyone else from their mental blocks as well as find a way off of the planet. They ultimately free everyone else, who they realize are all Science Police officers and other superheroes. The four Legionnaires leave, determined to find out who is behind this assault, as well as why those four Legionnaires were chosen to be put out of the way.