1. Code-Breakers: Bletchley Park's Lost Heroes

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. 25 October 2011. 60 min

Documentary revealing the secret story of how two men hacked into Hitler's personal super-code machine. Their break turned the Battle of Kursk and powered the D-Day landings.

2. The Most Courageous Raid of World War II

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. 1 November 2011. 60 min

Lord Ashdown tells the story of the Cockleshell Heroes, who took part in one of the most audacious commando raids of World War II - to blow up enemy shipping in Bordeaux harbour.

3. Dam Busters: The Race to Smash the German Dams

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. 8 November 2011. 60 min

James Holland presents an analysis of the 1943 mission to destroy German dams with a brand-new weapon - the bouncing bomb. Extraordinarily, the raid almost never happened.

4. Double Agent: The Eddie Chapman Story

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. 15 November 2011. 60 min

Ben MacIntyre reveals the true story of Britain's most extraordinary wartime double agent, Eddie Chapman. Featuring remarkable footage of Chapman three years before his death.