The Abyss is a 1989 American science fiction film written and directed by James Cameron and starring Ed Harris, Mary Elizabeth Mastrantonio, and Michael Biehn. When an American submarine sinks in the Caribbean, a US search and recovery team works with an oil platform crew, racing against Soviet vessels to recover the boat. Deep in the ocean, they encounter something unexpected.
In January 1994, the U.S. USS Montana has an encounter with an unidentified submerged object and sinks near the Cayman Trough. With Soviet ships moving in to try to salvage the sub and a hurricane moving over the area, the U.S. government sends a SEAL team to Deep Core, a privately owned experimental underwater drilling platform near the Cayman Trough, to use it as a base of operations. The platform's designer, Dr. Lindsey Brigman, insists on going along with the SEAL team, even though her estranged husband Virgil "Bud" Brigman is the current foreman.