Synopsis DAMBUSTERS - GREAT ESCAPE - Christened 'The Beast' by Churchill, Tirpitz was Nazi Germany's most powerful and dangerous battleship. Protected by an elite squadron of German fighters, it was seen as invincible. After 34 attempts to sink it in its Norwegian lair had failed, the RAF sent in the 617 'Dambusters' Squadron and 9 Squadron, and in a spectacular raid on 14 November 1944 they managed to slip through German defences and sink Tirpitz. With eyewitness accounts from surviving RAF crew, one of the Luftwaffe fighter pilots and German sailors who were on Tirpitz that day, this documentary tells this extraordinary story from a uniquely intimate and personal perspective and offers new and intriguing evidence to explain the raid's improbable success. D-DAY - THE LAST HEROES - D-Day was truly one of those days that changed the course of History. What was at stake was nothing less than the freedom of the western world. In a major two-part series, Dan Snow examines how two years of meticulous planning and espionage shaped the events for that day. D-Day The Last Heroes is also a powerful and compelling story of heroism and self-sacrifice and this is perhaps the last chance to hear the extraordinary first hand testimonies of those who risked their lives to save the world from Nazi tyranny. With unprecedented access to thousands of top secret 3D spy photographs, compelling story telling, state of the art CGI, rare archive colour footage and dramatic reconstruction, Last Heroes of D-Day brings one day in June 1944, into sharp focus.