The Female Spy Who Stole the Atom Bomb (Thriller Documentary) | Real Stories

Newly declassified MI5 files reveal the story of the female spy who stole Britain’s atomic secrets and gave them to the Soviets. In January 1941, Ursula Kuczynski, a Jewish German refugee, arrives in Oxford with her children on a British passport. She settles into the daily life of a housewife, but this woman has a secret – she is a Soviet spy.