At the top of the world…
At the bottom of the sea…
A war has begun.
Below the polar ice cap, an American nuclear submarine moves quietly in the freezing water, tailing a new Russian sub. But the usual, unspoken game of hide-and-seek between opposing captains is ended when the Americans hear sounds of disaster and flooding, and the Russian sub sinks in a thousand feet of water. The American sub rushes to help, only to join its former quarry in the deep.
The situation ignites tensions around ...