What if Hitler had had the A-bomb? Why did Japan's submarine sneak attack on Pearl Harbor fail? Could the Kamikazes have turned the tide of the war in the Pacific? In "Untold Stories," these and other compelling stories about the secret weapons, ruthless tactics, and remarkable heroism of World War II can be told. Witness the daring attempts of undercover Norwegian resistance fighters to destroy the Nazis' atomic bomb program. Relive the surprise air and underwater attack on America's battleships in Pearl Harbor. Find out why Kamikaze fighters—Japan's deadly weapons of destruction—would sacrifice themselves to destroy U.S. battleships and aircraft carriers.

In "Churchill's German Army," discover the untold story of the 10,000 Germans and Austrians who sacrificed everything to join the Allies in the fight against Hitler. The bravery of our home-grown heroes during the Second World War is well documented, but less is known about those who fled Nazi-occupied Europe to take up the Allied cause. Over the course of the conflict, thousands of Germans and Austrians fled Nazi persecution and joined British forces to fight against Hitler. Now, this extraordinary band of brothers tell their stories in full for the first time, and how together they became Churchill’s German Army.

"D-Day Men and Machines" reveals a plan orchestrated by the greatest military minds the Allies could muster. But there were others - now forgotten - who worked behind the scenes in total secret. A maverick collection of inventors, scientists, even sports heroes had been drafted in from the most unexpected walks of life with a specific command – to design and build an all-new mechanised armoury. Machines that could breath fire, tanks that could swim, gadgets and mechanical devices that could smash through Hitler’s defences. This is their story, and the story of the men who put these machines to the ultimate test on the battlefield.

• 2 discs; 194 minutes
• © 2010