(Code-Breakers: Bletchley Park's Lost Heroes)

Content: This is a documentary about unsung heroes of World War II. In 1943, a 24-year-old maths student and a GPO engineer combined to hack into Hitler's personal super-code machine - not Enigma but an even tougher system, which he called his 'secrets writer'. Their break turned the Battle of Kursk, powered the D-day landings and orchestrated the end of the conflict in Europe. But it was also to be used during the Cold War - which meant both men's achievements were hushed up and never officially recognized.

Countries:

United Kingdom

Genres:

Documentary,

War

Runtime:

59 minutes

Year:

2011

Directors:

Julian Carey

Production companies:

BBC Cymru Wales

Actors:

Narrator

Crews:

Director

Producer