It is 1961 in Berlin, and the Cold War is at its most chilling. Suave CIA agent Blackford Oakes has come to investigate. Brilliant, charismatic and with a tragic past, Henri Tod is head of Bruderschaft, the underground anti-Communist organization. Oakes will need his help in cracking the dark plots the Eastern bloc powers are hatching. And the KGB have found the one chink in Tod's armor.