Close to the Enemy

While Dieter is seemingly helping the British to achieve their jet engine goals, Victor comes to Callum with proof that Dieter isn't innocent of war crimes. After thwarting Victor and Kathy's attempts to recover information by stealth, Callum goes some way to regaining their favour by helping Kathy get access to a useful German prisoner, Birgit Mentz. He advises Kathy to try employing his own tactics to get Birgit to open up. Callum thinks he can get the proof that Harold requires to expose the British government's wartime secrets, and also keep Victor and Rachel close to him at the hotel. But can he have it all?

Victor, still struggling to cope with the effects of the war, tries to expose the activities of Callum's team.

Those around him choose not to pay attention and force him to seek medical help. He escapes from the hospital psychiatric ward at an opportune moment, while Callum and Rachel take advantage of Alex's upcoming business trip. When Callum's superiors try to stop Victor, his life is threatened.

Dieter finally tells Callum the truth about his past in Germany. The tables have turned, and it is now Dieter who tries to win over Callum. Harold similarly feels despair for failing to live up to Callum's expectations of him. Can these two men convince Callum of their integrity?

The drama series concludes. Preparations for Dieter's wedding are underway. Employing the same tactics as Callum, Kathy finally confronts Bergit about her activities, forcing her to realise that her options are limited. Meanwhile, Harold makes a decisive move as he struggles to cope with feelings of inadequacy. Concerned that he is caught in a marital game, Callum forces Rachel to admit her true feelings for him. As ever, Victor remains haunted by the effects of the war and the people who will get away with crimes they committed in the name of war. He ultimately learns that there are some people who are too important to prosecute, no matter what they have done.