DeepStar Six

Complete with a crew of intrepid explorers, the vessel DeepStar Six sets sail on a daunting mission to establish a top-secret nuclear Navy base on the ocean floor in this 1989 thriller starring Greg Evigan, Miguel Ferrer and Nancy Everhard. But as the courageous team works to finish its near-impossible task, they inadvertently disturb a terrifying alien life form that could kill them all at any moment.