In the early hours of the 27th of May, 1941, the German warship Bismarck  scourge of the Atlantic ocean  was sailing towards a fateful  encounter. Two days previously, Prime Minister Winston Churchill had  issued the order to "Sink the Bismarck". High winds and low visibility  added to the atrocious morning weather as Fleet Air Arm pilot, John  Moffat, took to the air in his open cockpit bomber.

Along  with twelve other brave pilots, John Moffat took down the largest  warship of its time. A warship that had destroyed the famed HMS Hood  within minutes, and was able to withstand anything the British military  threw at them. These men, in their Swordfish, managed to avoid the  fearful anti-aircraft fire and launched their torpedoes. One of them  hit, holing the German warship.

This is his story - of how  as a young man he experienced first-hand the titanic struggle for naval  supremacy, the cramped-cabins and meagre rations of WW2, the  mind-numbing patrols over hundreds of miles of ocean and the adrenalin  and fear of being in a fragile aircraft sought out by gunfire. As the  only surviving member of his fellow pilots, John Moffat tells of  everything that led him to be able to say, "I sank the Bismarck".