Last heroes of D-Day.

Summary/Review: On June 6, 1944, just after midnight, the first paratroopers landed on the Cherbourg Peninsula in Normandy. It marked the beginning of D-Day, the largest and most complex military operation in history. In a two-part series, Dan Snow examines how two years of meticulous planning, espionage, and the analysis of millions of three dimensional aerial reconnaissance photographs shaped that day. D-Day is also a powerful and compelling story of heroism, self-sacrifice and determination.