Aired Thursday 5 December, 1:05am - 2:05amon BBC Four HD

Bletchley Park: Code-Breaking's Forgotten Genius

Gordon Welchman was one of the original elite codebreakers crucial to the allies defeating the Nazis in World War Two. He is The Forgotten Genius of Bletchley Park.

Category
Documentary / Special
Original air date
07/09/2015
Cast and crew
  • Russell EnglandDirector
  • Steven MackintoshNarrator