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-https://en.wikipedia.org/wiki/The_AbyssIn January 1994, the U.S. Ohio-class submarine 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 as a base of operations. The platform's designer, Dr. Lindsey Brigman (Mary Elizabeth Mastrantonio), insists on going along with the SEAL team, even though her estranged husband Virgil "Bud" Brigman (Ed Harris) is the current foreman.
During the initial investigation of the Montana, a power cut in the team's submersibles leads to Lindsey seeing a strange light circling the sub, which she later calls a "non-terrestrial intelligence" or "NTI". Lt. Hiram Coffey (Michael Biehn), the SEAL team leader, is ordered to accelerate their mission and takes one of the mini-subs without Deep Core's permission to recover a Trident missile warhead from the Montana just as the storm hits above, leaving the crew unable to disconnect from their surface support ship in time. The cable crane is torn from the ship and falls into the trench, dragging the Deep Core to the edge before it stops. The rig is partially flooded, killing several crew members and damaging its power systems.
