Welcome aboard the Seaview, "the most extraordinary submarine in all the Seven Seas!" From the outside, the ship appears to be a high-tech research vessel, but it's actually the mightiest weapon in the Cold War arsenal of the U.S., sent on perilous, top-secret missions to battle the enemies of mankind.

"Two weeks after the start of WWII, a powerful German pocket battleship, the Graf Spee, sails the South Atlantic, destroying Allied merchant ships at will. Captained by one of Germany's most brilliant naval officers, the Graf Spee, with her superior speed and artillery, appears and disappears, sinking ship after ship. When the Allies are finally able to pinpoint its location a trap is set, pitting British Intelligence against a wily and powerful military...