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Tinker, Tailor, Soldier, Spy Season 1 Episode 3

Now that Smiley has rejoined the game he must secretly procure the information and files needed to conduct his investigation. While Peter breaks into the Circus’ archives and finds files that bring a whole new perspective to consider, Smiley goes to interview an old friend.

Episode Title: Smiley Tracks the Mole

Air Date: 1979-09-24