One could easily argue that of all the developments of World War II, none carried as much importance as Operation Overlord, also known as 'D-Day' - the Allied invasion of Nazi-occupied Europe. Given the high risk that the participants ran, the details were as guarded and classified as anything in the war. Hitler's minions expected the assault; in order to pull it off, the Allies had to mislead the German troops into believing that the landing would occur at Pas de Calais in lieu of the Normandy beaches. The deception came off without a hitch. This sprawling documentary package tells the incredible story of D-Day in epic form. Installments include: The Atlantic Wall, Operation Neptune, The Hedgerows, Operation Cobra and more.