Aired: Jul 7, 2002New testimony from British sailors and the U-boat men who hunted them, plus a...
Battle of the Atlantic
Season 1 Episode 2: Keeping Secrets
In the first 18 months of war, German U-boats sank more than three million tons of shipping. Eyewitness testimony, archive film and reconstructions illuminate the story of how Allied intelligence fought back against the killers in the deep, helped by the seizure of an Enigma code machine and cipher material.
