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.

• 20th Century Fox
• Pacific Western
• Ed Harris
• Mary Elizabeth Mastrantonio
• Michael Biehn
• Leo Burmester
• Todd Graff
• John Bedford Lloyd
• Kimberly Scott
• Chris Elliott