Episode 1
1961. Disgraced British spy, Fielding Scott, is given a chance to redeem himself in Berlin. He has to organise the defection of an East German scientist. Everything goes disastrously wrong.
Episode 2
The fatal fiasco of the "Beethoven" defection has consequences. Fielding is tasked with finding and eliminating the traitor. Fielding begins to recruit his own private army.
Episode 3
Fielding's Berlin life is unraveling; he decides to "go rogue" and provoke the Russians into retaliating. At the same time he is now being blackmailed over his affair with Severine.
Episode 4
Fielding's clever plan seems to be working. The Russians are agitated, running scared. A date is mentioned for the first time - Sunday, August 13th. What will happen in Berlin on that day?
Episode 5
Fielding feels threatened and drops out of sight. Three urgent questions preoccupy him - the Beirut photograph; Severine's obsession with Udo Hoff; and the date - Sunday, August 13th.
Episode 6
Fielding, reeling from the death of Severine, knows he has more to do—he must avenge Severine's death. Fielding unmasks the traitor and all the Berlin mysteries are explained.