An American nuclear submarine is attacked (during the cold war) and crashes underwater. The navy asks the workers of a nearby underwater oil rig who are joined by a number of navy SEALS to locate and investigate the cause of the crash. As the crew embark on their mission, they encounter a number of difficulties and discover that they may not be alone. There is something else down there.
|Ed Harris||Mary Elizabeth Mastrantonio|
|Michael Biehn||Leo Burmester|
|Todd Graff||John Bedford Lloyd|
|Kimberly Scott||Chris Elliott|