Part 1 - Grey WolvesAt the beginning of the war, the `U-boat peril' did not seem to be a huge threat, yet within eighteen months the campaign across the Atlantic threatened to starve Britain into submission.
Part 2 - Keeping SecretsDuring the first eighteen months of conflict, German U-boats were to sink more than three million tons of shipping off the American coast, severely damaging the Allied war effort. But by 1941, a vital source of naval intelligence promised to transform the war in the Atlantic, snatching victory from the jaws of defeat.
Part 3 - The HuntedIn the first three years of war, German U-boats threatened to starve Britain into submission, but by the spring of 1943 the tide had turned and the hunter had become the hunted. Eyewitness testimony, archive film and reconstructions illuminate the remarkable story of how, in just months, the Allies destroyed the U-boat fleet.
|The Battle of the Atlantic|