
This series unveils the engineering secrets of various iconic megastructures that went on to spark a technological revolution, ultimately changing warfare forever. The Nazis built some of the biggest and deadliest pieces of military hardware in history. Adolf Hitler hired men like Wernher von Braun, Ferdinand Porsche and Alfred Krupp to build huge terror machines, high-tech superguns and weapons of mass destruction.

Hitler makes a final attempt to win the war with a surprise winter attack, and the resulting war crimes against American forces.

The Germans expect an attack in the Spring of 1944, but instead they find themselves in a fascinating game of cat-and-mouse in the lead-up to June 6.

As a deadly battle threatens to bring the United States' B-29 bomber in reach of Japan, the Japanese bank on a mighty weapon of their own to bring them victory.

A closer look at the secret preparation and torpedo technology that was behind Japan's devastating surprise attack on Pearl Harbor in 1941.