In the distant future, ten space cadets embark on a survival test that leaves them adrift aboard a derelict spacecraft from which they must find their way home. Terror erupts when they discover that there are eleven of themselves aboard the ship. One of them is an imposter, and the cadets must uncover his or her purpose before their lives hang in the balance. Paranoia runs rampant as the crew scrutinizes one another for any misstep. Can they identify the spy before it’s too late?