Episode 5

S6 E5: Attempting to stop an Iranian nuclear deal on British soil, Adam is framed for the killing of a mugger, who turns out to be a journalist investigating the Tehran train bomb. Ros fears Adam may have been compromised by his source, the Iranian Special Consul's wife, with whom Adam is conducting an affair. The journalist on the verge of printing the story might in fact be the one person who can save Adam and the credibility of MI5.