This is the history of an unprecedented deception operation - the biggest KGB deception of all time. It has never been told in full until now. General Alexander Orlov, Stalin's most loyal and trusted henchman during the Spanish Civil War, was also the Soviet handler controlling Kim Philby, the British spy, defector, and member of the notorious 'Cambridge Five'. Escaping Stalin's purges, Orlov fled to America in the late 1930s and lived underground...