Klaus Fuchs

This documentary details the life of Klaus Fuchs who was a spy for the Soviet Union while working on nuclear research in the United States and Great Britain. It also discusses the contributions of German scientists to the atomic bomb.

On the 29th of August 1949, the USSR set off their first atomic bomb, just four years after the Americans. The speed with which they achieved this surprised the world. What nobody knew was that it was the result of espionage. At the centre of the operation was a very unusual female spy, Elizabeth Zaroubin, in a story worthy of the best spy novels ever written.

Documentary, first broadcast in 1966, that tells the history of the superbomb, exploring the race by scientists to imitate the nuclear reactions of the sun and build the first thermonuclear weapon. The film reveals how the careers and reputations of some of the scientists involved were seared in the process.