This documentary, made entirely with remastered and colourised archive footage, traces Operation Overlord from its genesis to the Battle of Normandy. The film depicts the epic story of one of the greatest military operations ever conceived by man, from the summer of 1941 – when Churchill and Roosevelt first discussed the issue – to the touch down on 6 June 1944. It sets out Hitler’s strategy for preventing and countering the landings.

Beyond the military strategies that will be evoked, it will also be a question of recounting this crucial turning point of the Second World War from a geopolitical angle (the difficult alliance between London, Moscow and Washington) as well as from an economic angle (the preparations were far from easy)… without forgetting the anonymous soldiers who paid the ultimate sacrifice.