Far below the surface of the unforgiving sea, the daring crew of DeepStar Six are explorers in a forbidding world of impenetrable darkness and unimaginable pressure. They have invaded the icy fathoms into which no human has ever ventured. Their mission is to establish a top secret Navy base on the ocean floor. But something's down there and the crew of DeepStar Six are about to make a startling discovery--there's no excape from the terror of the deep.