Deckname Blitz (2004)

In 1989, the year the Cold War ended, Hüseyin Yıldırım, a Turkish man living in Berlin, was labeled the US's most dangerous spy. He received a life sentence, with no possibility of being exchanged for other agents after the Berlin Wall came down, leaving him stateless. Yıldırım had secretly acquired highly classified NATO documents from the Teufelsberg, a crucial American listening post for Eastern Europe, where he worked as a car mechanic at the Teufelsberg Field Station.