The Spy Who Went Into the Cold

Leaving December 31. It was one of Britain's most devastating scandals: in 1963, former top MI6 official Kim Philby was unmasked as a Soviet double agent and then fled to the USSR. But the details of his defection are murky, and the legacy of his actions lingers. This documentary recounts Philby's final days in Britain and examines whether his last betrayal was to sow seeds of doubt inside Britain's security service.