Antibodies director Christian Alvart takes suspense into space with this tale of two astronauts who realize that they aren't alone as they drift into the darkest corners of our galaxy. Awakening in their hyper-sleep chamber with no memory of who they are or what their mission is, disoriented astronauts Lt. Payton (Dennis Quaid) and Corporal Bower (Ben Foster) gradually surmise that they are the only ones aboard the darkened spacecraft. But how did they get here, and what are those strange sounds coming from the other side of the ship? The only way out of their hyper-sleep chamber is a cramped air shaft, and the only one small enough to climb through it is Corporal Bower. As he shimmies inside to investigate, Lt. Payton mans the radio transmitter. But the deeper Corporal Bower ventures into the ship, the more apparent it becomes that something horrible has happened. There were 60,000 passengers onboard when the astronauts went to sleep, and now there's not a soul in sight. Before long, the two weakened and weary space travelers are fighting for their lives against a force neither can comprehend. Could it be that the survival of the entire human race rests in the hands of these two astronauts stuck on a lonely ship in deep space?