Tinker Tailor Soldier Spy S1, E5

In the bleak days of the Cold War, espionage veteran George Smiley is forced out of semi-retirement to uncover a Soviet agent within MI6's echelons.

Cast:Alec Guinness , Michael Jayston , Anthony Bate , George Sewell , Bernard Hepton , Ian Richardson , Hywel Bennett , Terence Rigby , Ian Bannen , Michael Aldridge , Alec Sabin , Alexander Knox , Duncan Jones , Daniel Beecher , Beryl Reid , John Wells , Frank Compton , Frank Moorey