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Based on the true story of the hunt for the Nazi super-battleship Bismark, this film follows the valiant attempts of the British Admiralty's chief of operations, Captain Jonathan Shepard (Kenneth More), and his team as they gather intelligence and launch an offensive against the dreaded German juggernaut. Midway through the operation, Shepard is shocked to discover his old rival, Admiral Günther Lütjens (Karel Stepanek), is at the helm of the Bismarck, and the mission suddenly becomes personal. Wikipedia