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.

Ed Harrisas Virgil 'Bud' Brigman
Mary Elizabeth Mastrantonioas Lindsey Brigman
Michael Biehnas Lieutenant Hiram Coffey
Leo Burmesteras Catton ‘Catfish’ De Vries
Todd Graffas Alan 'Hippy' Carnes
John Bedford Lloydas Jammer Willis
Kimberly Scottas Lisa 'One Night' Standing
Chris Elliottas Bendix
J.C. Quinnas Arliss 'Sonny' Dawson
Mikael Salomon