In the second episode of this two-part special, the net begins to close on Philby.

Summoned back to London from Washington, he faces interrogation, as suspicion grows that he is a Soviet agent, working within MI6. His old friend and colleague in MI6, Nicholas Elliott, defends his friend's reputation, insisting that he is innocent.

For the next 12 years Philby, with Elliott's unwitting help, manages to charm and bluff his way out of every accusation. Then, in January 1963, Philby's luck runs out as the two friends meet for the final time and Elliott demands the truth.

This is the remarkable tale of two friends and two spies, each working on opposite sides in the Cold War. Show less