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.
Genres: Adventure , Science Fiction , Thriller
Keywords: alien-life-form , deepsea , diving-suit , extraterrestrial-life-form , flying-saucer , insanity , message , nuclear-missile , ocean , scuba , scuba-diving , sea , secret-mission , submarine , thalassophobia , trapped-underwater , u-s-navy , ufo , underwater , warning