The first of four programmes unravelling mystery and history.
1: Spit, Suck and Secrets. In Britain's Bletchley Park, during the Second
World War, a team of men and women began to unpick Germany's Enigma codes, believed by Hitler to be unbreakable. Pat Bing and her friends Freda James and Connie Cullum were three ladies who worked in Hut Eight receiving German naval codes. The rest of Bletchley Park remained a mystery to them for over 30 years. Producer Ronit Knoble