TV drama based on the novel by Frederick Forsyth. Alan Howard stars as British secret agent Sam McCready, who, having been blacklisted by the KGB, sends his old friend and MI6 colleague Bruno Morenz (Brian Dennehy) to East Germany to broker a crucial deal on his behalf. However, unbeknown to Sam, Bruno is teetering dangerously on the verge of a mental breakdown after finding out that his girlfriend has been unfaithful, and his actions threaten to endanger both their lives as Sam is forced to follow him into forbidden territory.