Harry, Adam and all of the other members of Section D are out on the street following the suspension of the section's activities pending a full investigation of Ros Myers' betrayal. Adam has lost faith and offers journalist Ben Kaplan details of the entire Iran affair starting with the train bombing in Iran. Connie however meets an old adversary, Davie King, an ex-IRA killer who tells her there is a bomb set to go off in London that same day and he wants Harry and the rest of the team to be there. If not, he will continue to place bombs until they're dead. King was once Connie's man inside the IRA who got out, but not before killing two MI-5 officers and several innocent bystanders. Harry and the others assume King is out for revenge but realize there may something far more sinister going on when CIA Station Chief Bob Hogan tells them that the Home Secretary's assistant, Jason Belling, is having secret meetings with the Iranian Special Consul and may be a mole.
—garykmcd