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.
Directed by Tim Fywell
Tom Hollander
Guy Burgess
Toby Stephens
Kim Philby
Rupert Penry-Jones
Donald Maclean
Samuel West
Anthony Blunt
