6th June 1944. The beaches of Normandy are the scene of the most spectacular military operation of all time: the Normandy Landings, a key moment that will alter the course of the Second World War. They owe their success, though, to a gigantic lie: a phantom army, armed with inflatable tanks and wooden rifles; but also to a whole network of double agents, most of them entirely fictitious. And leading this campaign of disinformation - the most sophisticated ever dreamt up – is one man: Winston Churchill.