Smiley's People

After George Smiley has uncovered the traitor, or "mole", inside the Circus, Britain's top secret service, he is asked to take over as head of the wounded agency. His goal is to restore the integrity and capabilities of the organization, and nullify or destroy Karla, the Soviet spymaster who very nearly "turned the Circus inside out." He brings back the expert staff that had been discarded by the traitor, and begins restoring the Circus to its former glory.