The Abyss

After a nuclear submarine mysteriously sinks in some remote part of the ocean floor, a team of divers on a prototype underwater oil rig are pressed into service by the U.S. Navy in a rescue attempt. When a hurricane cuts off contact between the surface and the underwater depths, the crew begins to see evidence of a strange, possibly alien intelligence at work. Their chief Bud Brigman (Ed Harris) bickers with his ex-wife and boss (Mary Elizabeth Mastrantonio), the Navy commander begins to grow increasingly paranoid about the mysterious alien life and threatens to use a recovered nuclear weapon to destroy everything.