Dead Men's Secrets - Secrets of the Sea Wolves
This is the DVD release (see more).
SummaryWWII's longest, most crucial battle was waged at sea where German U-boat packs roamed the Atlantic hunting their prey. In a campaign to cut off vital supplies from the U.S. to Great Britain, they came close to starving England into surrender. If they succeeded, the Allies would almost certainly lose the war. Using archival footage of U-boats at work, we see that the Germans were at the forefront of technology, and how the Allies fought back to force the U-boat menace into submission.
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