USS New York - a sixteen thousand ton nuclear Trident lies on the floor of the icy North Pacific on the U.S -Soviet border. Trapped inside are its dying crew and the Pentagon's most vital secrets. The Russians want her. America wants her back. It's an impossible mission that only one man dares accept. In the shadowy world of modern underwater warfare, oceanographer Frank Hall plays by his own rules. As the military, the press and the rest of the world wait anxiously, Hall descends the silent depths. In the frigid black waters, a deadly enemy is poised to strike - a Russian commander who lost everything to Hall once before and who is ready to even the score.