Watch DeepStar Six

In the last week of their six month mission, the crew of Deep Star Six is ready to return home. Completion of the final task of their mission, establishing an undersea missile storage depot, is hindered when the crew discovers an elaborate cave system at the proposed storage site. Ordered to collapse the cavern, the crew detonates charges which cause a cave in. In the process, they unwittingly unleash a force which threatens to destroy them all. Now the crew is thrust into a fight for their lives with an unknown assailant at the bottom of the sea.