World War II: Secrets From Above

1944 - while the Nazis race to bolster their coastal defenses, the Allies prepare for the largest amphibious invasion in history.

1942 - the Nazis develop the world's first cruise and ballistic missiles. Can the Allies stop Hitler before he rains down terror from above?

Reconstructing the WWII battle in the skies over Britain, the hunt for the deadly Nazi U-boats, the parachute drop at Arnhem, the Allies' bloody struggle through Normandy, the showdown at the Italian Abbey of Montecassino, and the fight for Poland.

The longest campaign of the war pits the deadly stealth of the Nazi U-boats against the code-breaking genius and long-range bombers of the Allies.

The Allies head into enemy territory after capturing the beaches of Northern France; they embark on a two-month march to liberate Paris.