AllMovie

When an American Navy fast-attack submarine is sunken off the coast of North Korea and the vessel's executive and engineering officers are killed, the commander of the submarine is forced to choose between returning to the dangerous waters to tap a North Korean underwater communications cable or facing court martial in this deep-sea thriller starring Adrian Paul and Mathew St. Patrick. As the Naval Board of Inquiry begins investigating the strange fate of the sunken submarine, Commander Burt Habley's (Paul) fate looks increasingly grim. Given the opportunity for redemption by returning to North Korean waters with a fleet of U.S. submarines and executing a mission of great importance to American intelligence forces, Habley attempts to keep his crew out of harm's way and complete the mission while avoiding confrontation with the ship's strict executive officer, Steven Barker (St. Patrick). Upon sensing that their submarine is being followed, Habley attempts to lead their pursuer away from the U.S. fleet by changing course much to the chagrin of the rule-bound Barker. When Barker assumes command of the submarine and attempts to continue the mission, a surprise attack prompts Habley to unite the divided crew in a desperate bid to take on the unseen enemy and ensure the safety of his crew and the U.S. fleet.