Nazis, U-boats and the Battle for the Atlantic

Deep-sea divers hunt for the wrecks of Hitler’s dreaded U-boat fleet off the north west coast of Ireland, while historians unravel the early stages of World War II’s longest campaign.

Divers hunt for the wrecks of World War II’s longest campaign that lie off Ireland’s north west coast, as historians explore the Allied fightback at sea and the human cost of war.