In May 1941, the Royal Navy pursued Nazi Germany's largest battleship, the Bismarck, in the greatest chase story in the history of naval warfare. Bismarck represented the single most important threat to the Royal Navy and the vital Atlantic convoys they sought to protect; her armoured protection had earned her the reputation of being unsinkable. Join Dan as the historian Angus Konstam takes him through a blow by blow account of Operation Rheinübung and the sinking of Bismarck.