Tinker Tailor Soldier Spy - Season 1 - Eps 1: Return to the Circus
George Smiley's quiet retirement is interrupted when messengers arrive from London Station and call upon George Smiley to come back into the game. Smiley is brought to Sir Oliver and it is revealed that a highly influential mole has been operating out of the Circus for quite some time.
About Tinker Tailor Soldier Spy

Title: Tinker Tailor Soldier Spy
First Air Date: 1979-09-10
Last Air Date: 1979-10-22
Status: Ended
Rating: 7.6/10 (from 112 votes)
Language: EN
Seasons: 2
Total Episodes: 7
Network: BBC Two
Genres: War & Politics, Drama, Mystery
Production Companies: BBC, Paramount Pictures
Synopsis
George Smiley, the aging 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.
Cast

Alec Guinness
George Smiley

Michael Jayston
Peter Guillam

Anthony Bate
Oliver Lacon

George Sewell
Mendel

Bernard Hepton
Toby Esterhase

Ian Richardson
Bill Haydon

Hywel Bennett
Ricki Tarr

Terence Rigby
Roy Bland

Ian Bannen
Jim Prideaux

Michael Aldridge
Percy Alleline