A civilian oil rig crew is recruited to conduct a search and rescue effort when a nuclear submarine mysteriously sinks. One diver soon finds himself on a spectacular odyssey 25,000 feet below the ocean's surface where he confronts a mysterious force that has the power to change the world or destroy it.

Adventure, Action, Thriller, Science Fiction

Ed Harris, Mary Elizabeth Mastrantonio, Michael Biehn, Leo Burmester, Todd Graff, John Bedford Lloyd