In 1934, four brilliant Cambridge students are recruited to spy for Russia. Fueled by youthful idealism, a passion for social justice and a talent for lying, they take huge personal risks to pass Britain's biggest secrets to Moscow.
1983
1982
2012
2013
1989
1976
2022
2025
2007
1981
1975
2014
2019
1960
2010
2021
2004
2026