When Cybergirl plunged from the world of young Jackson Campbell, she changed his life and the fate of River City forever. Chased by two bounty hunters from her home planet, Cybergirl is unable to resist using her superpowers whenever there is a crisis. She soon becomes the obsession of Rhyss, a sinister software mogul, determined to find and exploit her. Cybergirl becomes the most human of super heroes: a fun-loving teenager, who just happens to be out of this world!