John le Carré's espionage novel 'Tinker Tailor Soldier Spy' was first published, introducing readers to the iconic Cold War spy story centered around British intelligence.
The BBC released a television miniseries adaptation of 'Tinker Tailor Soldier Spy', starring Alec Guinness in the lead role, which garnered critical acclaim and increased the story's popularity.
A film adaptation of 'Tinker Tailor Soldier Spy' directed by Tomas Alfredson and starring Gary Oldman was released, receiving positive reviews and bringing the story to a new generation.
George Smiley is recruited into the British intelligence service, marking the beginning of his career in espionage.
The British secret service, known as the Circus, is formally established as the main intelligence agency.
Smiley and his colleagues undertake operations against Soviet intelligence during the escalating Cold War tensions.
Suspicion arises within the Circus about a Soviet mole deeply embedded, triggering intensive internal investigations.
George Smiley is brought back to active intelligence work to uncover the mole within the Circus leadership.
An operation designed to feed false intelligence to the Soviets to expose the mole.
George Smiley uncovers that Bill Haydon, a top Circus officer, is the Soviet mole responsible for leaks.
Following his exposure, Bill Haydon is removed from the Circus and imprisoned for treason.
The Circus undergoes reorganization to prevent further infiltration and restore morale following the mole scandal.
