Episode 1
Hitler transformed his Alpine retreat in Bavaria into a fortified fiefdom, home to 2,000 SS troops and protected by a high level security system.
Episode 2
It’s June 1940 and the Nazis have taken the Channel Islands, where Hitler orders some of the most fortified structures in the Third Reich.
Episode 3
Ruins across Europe tell the story of Blitzkrieg, a revolution in warfare which almost gave Hitler the chance to create his Thousand Year Reich.
Episode 4
Hitler planned a submarine to outperform all others. The Type 21 was the world's most advanced submarine: Hitler's sea-faring super weapon.
Episode 5
In the 1930s the Japanese begin designing the Yamato, the world's most powerful battleship, 30 per cent larger than anything their enemies have.
Episode 6
In 1945 Japanese generals construct a network of defences and tunnels on Okinawa, creating a devastating killing ground for American troops.
