WWII'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.

• MPAA rating ‏ : ‎ NR (Not Rated)
• Product Dimensions ‏ : ‎ 7.5 x 5.5 x 0.5 inches; 3.5 ounces
• Media Format ‏ : ‎ NTSC, Multiple Formats, Color
• Release date ‏ : ‎ April 25, 2006
• Studio ‏ : ‎ A&E Home Video