Designated the Type 21, Hitler's new submarine is a sea-faring super weapon.

54:10

When Nazis rolled across France in 1940, it was with a combined speed and ferocity.

54:41

Watch the story of one of the greatest fortification systems in the history of warfare.

01:01

Explore the secret caves, bunkers and factories hiding clues to Japan's suicide bombers.

01:00

Discover the story of Hitler's two record-breaking megaships: Bismark and Tirpitz.

01:00

Discover the history of the sinister and terrifying Nazi cult — the SS.

Explore the secret headquarters at the heart of Hitler's plans for world domination.

00:58

Learn the story behind the world's first cruise missile.

01:00

The Japanese decide that the island of Okinawa will be their last bastion of defense.

00:30

The Type 21 U-boat was Hitler's ultimate deep sea destroyer.

00:30

Learn about a great fortification project of the 20th century, Hitler’s Atlantic Wall.

00:30

Learn how the German Army secretly worked on one of history's greatest fortifications.

00:30

Uncover the secrets of the terrifying weapons Japan sent into war.

00:30

Hitler orders the construction of the world's largest and most powerful ships.

00:30

The history of the SS — the sinister and terrifying Nazi cult. Airs 1/21.

00:30

The secret headquarters at the heart of Hitler's plans for world domination.

00:30