 Astronaut Zachary Stone (Ken Olandt) returns from his acclaimed deep-space mission to Mars to find that his father is dead and that his police detective brother Frank (Marshall R. Teague) is missing, presumed murdered and falsely accused of being a crooked cop due to fabricated computer evidence.Frustrated at the seeming lack of concern or progress by the authorities, Zach takes it upon himself to find those responsible and bring them to justice, joining the Metroplex Police Department as a detective under precinct captain Carla Frost (Lisa Niemi).After his first failed attempt almost leads to his death in Metroplex's aptly-named "Crime Zone", Zach meets F.X.