I just discovered a show called Deutschland 83. It has been around a couple of years, but I hadn't seen it. It is about a young, East German soldier who is recruited to become a spy for the KGB. He poses as a West German army officer who is the Aide to a high ranking West German officer involved with the placing of American Pershing II nuclear missiles in West Germany at the height of the cold war.
It is an excellent series, although if you don't like subtitles (German language), you may not like it.
Edit: And now, Deutschland '86. Excellent sequel.