Inside Story (1974) : 8x8

Over ten years, the secret intelligence service MI6 infiltrated about 30 British agents into the Soviet Union to operate with anti-Communist partisans. By 1954, Harry Carr, MI6 chief, believed that his spy network stretched from the Baltic States to Siberia. Then Carr discovered that MI6 was the victim of an astonishing sting organised and orchestrated by the KGB. Not surprisingly, the disaster was covered up and the blame erroneously placed upon the traitor, Kim Philby. For the first time, the inside story of an MI6 operation is told by MI6's officers and agents and, uniquely, by those on the other side of the Iron Curtain - the KGB officers who deceived Britain's pride - the Secret Intelligence Service.