7/7 George Smiley's search for the mole at the heart of the Circus finally comes to an end.
6/7 Smiley's investigation to snare the Circus traitor leads him to journalist Jerry Westerby.
5/7 Drama adaptation. Smiley thinks that the time has come to call on Jim Prideaux.
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4/7 Smiley remembers Karla, the legendary head of Moscow Circus.
3/7 George Smiley sets out for Oxford to visit an old and invaluable friend.
2/7 Smiley is forced to go back over some very old ground when he is told a story about spies.
1/7 George Smiley agrees to head the hunt for a Secret Service mole.