
S01E01 A Mother's Assistance
Once more, George Smiley is brought out of retirement to look into the murder of an old colleague.
Smiley takes a trip to investigate his friend's flat for clues. After finding a series of clues that lead to something bigger, Smiley interrogates a man about Vladimir's whereabouts. And lastly, a picture of two men in bed with a woman stirs things up.
Called out of retirement to settle the affairs of a friend, Smiley finds his old organization, the Circus, so overwhelmed by political considerations that it doesn't want to know what happened. He begins to follow up the clues of his friends past days, discovering that the clues lead to a high person in the Russian Secret service, and a secret important enough to kill for.