
Tinker Tailor Soldier Spy — Season 1
One of Britain's master spies is working for the enemy. Can George Smiley beat him at his deadly game?
About this season
George Smiley, the ageing master spy of the Cold War and once heir-apparent to Control, is brought back out of retirement to flush out a top level mole within the Circus. Smiley must travel back through his life and murky workings of the Circus to unravel the net spun by his nemesis Karla 'The Sandman' of the KGB and reveal the identity of the mole before he disappears.
Episodes (7)

1. Return to the Circus
9.7Aired 10 September 1979 • 50 min
Retired espionage veteran George Smiley is called out on a top-secret mission: to uncover a Soviet agent within MI6's echelons.

2. Tarr Tells His Story
10.0Aired 17 September 1979 • 49 min
British agent Ricki Tarr, believed to have defected, resurfaces with sensational information: confirmation of a Russian mole in the Service.

3. Smiley Tracks the Mole
9.7Aired 24 September 1979 • 47 min
The investigation begins, with Peter Guillam burgling the archives for information, while Smiley visits an old comrade whose past knowledge could prove vital to locating the spy.

4. How It All Fits Together
9.7Aired 1 October 1979 • 43 min
While Guillam and Tarr come under pressure, Smiley recounts his one meeting with Soviet master spy Karla, who is undoubtedly running the mole inside MI6.

5. Tinker Tailor
10.0Aired 8 October 1979 • 45 min
Smiley calls on ex-Circus spy San Collins, who was the duty officer the night Jim Prideaux was shot. Collins confirms the events as Smiley understands them and that Prideaux's good friend Bill Hayden is the senior officer who took charge of the case after all hell broke loose. Smiley subsequently meets with Prideaux to get a firsthand account of the events during the disastrous Operation Testify in Czechoslovakia.

6. Smiley Sets a Trap
10.0Aired 15 October 1979 • 41 min
Smiley confronts one of his suspects and gives him the results of his investigations, which could prove a considerable embarrassment to those concerned.

7. Flushing Out the Mole
10.0Aired 22 October 1979 • 43 min
Smiley springs his trap and catches the mole, who confesses how and why it happened, and the answers ultimately rob Smiley of any sense of victory.