Sci-fi thriller in which two astrounauts awake to find themselves drifting alone in space, or so they think. Awakening from their hyper-sleep chambers on a seemingly deserted spaceship, Lt. Payton (Dennis Quaid) and Corporal Bower (Ben Foster) have no recollection of who they are or what their mission is. In the dark, all that can be heard is a low rumble coming from the centre of the ship. With Payton staying behind to guide him on the radio, Bower sets off to explore the spaceship and soon uncovers the aftermath of a terrifying event that will have implications not only for their lives, but for the lives of everyone on Earth.