On February 9, 1945, two submarines are poised to engage in a direct, underwater confrontation. It's the first - and only - underwater submarine dog fight in recorded naval history.
In the icy waters off of Norway in 1945, a U-boat embarks on a mission to bring top-secret German technology to Japan, unaware that a Royal Navy V-class submarine has just been ordered to patrol the area. Neither commander manning their vessel realizes that they are about to face-off in the world's first underwater submarine dogfight. Witness the historic battle between HMS Venturer and U-864.
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