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.

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.

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.