September 1943 - The mighty German battleship Tirpitz lies moored in the safety of a Norwegian fjord. All previous attempts to sink it have failed, leaving a young commander to prepare for a top-secret mission using the highly experimental and dangerous X-craft. Part war story, part fact book, Depth-charge Danger reveals what it was really like to be in a Second World War submarine. It includes: rations; battle maps; and submarine 'tech-spec'.
