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.
2019
2020
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2012
1989
2024
1983
1970
2021
1993
2006
2010
1972
1976
2009
2023
2025