The story begins in 1997, as shocking news reaches retired Mossad secret agents Rachel and Stephan about their former colleague David. All three have been venerated for decades by Israel because of the secret mission that they embarked on for their country back in 1965-1966, when the trio tracked down Nazi war criminal Dieter Vogel, the feared Surgeon of Birkenau, in East Berlin. At great risk, and at considerable personal cost, the team's mission was accomplished - or was it?