
Part one of two. Dan Snow examines how meticulous planning, espionage and 3D aerial photos helped the Allied forces gain a foothold in northern France in June 1944. S1 Ep1

Part one of two. Dan Snow examines how meticulous planning, espionage and 3D aerial photos helped the Allied forces gain a foothold in northern France in June 1944. S1 Ep1

Part one of two. Dan Snow examines how meticulous planning, espionage and 3D aerial photos helped the Allied forces gain a foothold in northern France in June 1944. S1 Ep1

Part two of two. Dan Snow's documentary tells the powerful and heroic stories of those who risked their lives on the beaches of Normandy.