The USS Neptune, a nuclear submarine, is sunk off the coast of Connecticut after a collision with a Norwegian cargo ship. The navy must attempt a potentially dangerous rescue in the hope of saving the lives of the crew.

Charlton Heston
as Captain Paul Blanchard

David Carradine
as Captain Gates

Stacy Keach
as Captain Bennett

Ned Beatty
as Mickey

Stephen McHattie
as Murphy

Ronny Cox
as Commander Samuelson

Dorian Harewood
as Fowler

Rosemary Forsyth
as Vickie Blanchard

Hilly Hicks
as Page

Charles Cioffi
as Admiral Barnes
CinemaSerf
Charlton Heston is the Captain of the "USS Neptune", a nuclear submarine returning to port after his final mission in command. Whilst running on the surface they collide with a Norwegian boat with faulty radar and sink deep down into the Atlantic and end up perched precariously on a ledge prone to r...