No doubt remains; a mole has infiltrated the highest level of the Circus, code name for British Secret Intelligence Service. Sidelined agent George Smiley is covertly tapped to root out the traitor, a task that requires an intensive dig through the labyrinths of Cold War espionage and his own past.

Contains all 6 episodes from the series. Based on the novel by John le Carré. These Blu-ray discs will not play in standard DVD players. Originally broadcast as a television miniseries in 1979. Bonus features: Exclusive interview with director John Irvin; Deleted scenes; Interview with John le Carré; Production notes; Glossary of main characters and terms; Le Carré biography and booklist.

Disc 1.Episodes 1-3 -- Disc 2. Episodes 4-6 -- Bonus features.