In 1989, shortly before the Berlin Wall fell, British intelligence agent MI6 James Gasciogne was shot and killed by a KGB agent, Yuri Bakhtin, and the latter steals a list of a microfilm hidden in a watch containing the names of all agents on mission in the Soviet Union. Ten days later, Lorraine Broughton, a major MI6 spy, is brought in for questioning by senior Eric Gray and CIA agent Emmett Kurzfeld on a mission in Berlin.
The day after Gasciogne’s death, Lorraine was sent to Berlin to recover the List and assassinate Satchel, a double agent who has been selling information to the Soviets for several years and betrayed Gasciogne. When she arrives in Berlin she is immediately caught in an ambush by KGB agents working for a Russian arms dealer and associate of the Russian Secret Service Aleksander Bremovych.
Lorraine then meets her liaison agent, Agent David Percival. After trying to find some clues, Lorraine searches Gasciogne’s apartment and finds a photograph with him and Percival, then caught by the German police. She realized at that time that only Percival knew he would go to the apartment and start to suspect that he was the double agent he was looking for. She also meets the naive French agent Delphine Lasalle, with whom she also begins a relationship.