George Smiley is called back from retirement to investigate the capture and torture of an agent in Czechoslovakia and to seek out a mole believed to be at the heart of the Circus.

Dramatisation by Shaun McKenna of John le Carre's classic novel featuring intelligence officer George Smiley.

Ever since the capture and torture of their agent in Czechoslovakia, the British Secret Intelligence Service has been in trouble. Now, the government has been forced to call George Smiley back from retirement to investigate the whole incident and to seek out the mole they believe to be at the heart of the service.

George Smiley ...... Simon Russell Beale

Ann Smiley ...... Anna Chancellor

Jim Prideaux ...... Anthony Calf

Peter Guillam ...... Ewan Bailey

Oliver Lacon ...... Alex Jennings

Ricki Tarr ...... Jamie Foreman

Irina ...... Vera Filatova

Mendel ...... Kenneth Cranham

Connie Sachs ...... Maggie Steed

Magyar ...... Peter Majer

Roddy Martindale ...... Philip Fox

Bill Roach ...... Ryan Watson

This episode is available until 3.00pm on Sunday 2nd May as part of the Series Catch-up Trial.