What Happened at Dunkirk?

Christopher Nolan's "Dunkirk" tells the harrowing story of perhaps the most daring military escape in human history. With the Nazis blitzing France in 1940, hundreds of thousands of (mostly) British soldiers found themselves trapped. Due to infinite amounts of bravery and gusto, 338,226 of them lived to tell the tale, later finding themselves at the forefront of the force that brought Hitler to his knees.