American naval forces are using a port in Iceland as a base for anti-submarine patrols to protect North Atlantic convoys from Nazi subs. The Nazis send undercover agents into the port in a scheme ...

On August 6, 1942, a large Allied convoy braved the fog-shrouded North Atlantic en route to Liverpool, relentlessly hunted by the deadly German U-boat Wolfpack Steinbrinck. The convoy’s nine ...

The Battle of the Atlantic lasted as long as World War Two itself. By the summer of 1942 one Allied ship was going down every four hours, yet German U-boat losses remained frustratingly low.

More than fourteen major engagements are featured, including the Battle of the Denmark Straits, Atlantic Convoy Run, and Bismarck and Prinz Eugen versus the Hood and Prince of Wales of the Royal Navy.