Charlton Heston, David Carradine, and Ned Beatty star in the suspense-packed undersea drama Gray Lady Down. When a nuclear submarine, the U.S.S. Neptune, accidentally collides with a freighter, Captain Paul Blanchard and his crew find themselves trapped far below the surface. With only enough oxygen to sustain his crew for 48 hours, Blanchard must buy enough time for a risky rescue operation via an experimental and untested vessel. Stacy Keach, Ronny Cox, and Christopher Reeve also star in this riveting adventure of man and machine versus time and the elements... with life and death as the stakes.