An abortion doctor and her daughter arehuged by a bomb placed by Mary Kane, an American "pro-life" terrorist. An informant reveals that this is just the tip of the iceberg as 20 bombs have gone missing. Kane has started training more pro-life groups within the UK and is planning more attacks. Meanwhile, Tom struggles with issues of duplicity and juggling two identities.

Tom and Helen must go undercover and befriend the wife of a suspected hardcore racist in order to prevent a racewar. Meanwhile Zoe and Tessa learn that a boatload of refugees is due to dock at Dover in the next few days. Things worsen when the operatives realise the two things may be connected and their covers may be blown.

Whilst on a routine check of the bugs in the Turkish Embassy, Zoe and all the other people in the embassy are taken hostage by terrorists who wish to negotiate the release of their parents from prison. If Zoe's cover as a PR consultant is blown she will almost certainly behuged. Things worsen when Harry realises that the attack on the embassy was all just a distraction from something much, much bigger.

Mi5's best officer, Peter Salter, seems to be joining the enemy. President Bush is scheduled to visit and it seems as though Salter is trying to stop the peace, is this all part of his mission or is he in fact a triple-agent?

Disgraced MP Hampton Wilder has written memoirs with the power to destroy the government. Moreover, an old KGB agent engaged in smuggling illegal arms has impugned the integrity of one of the Prime Minister's closest colleagues.

Patrick McCann, the leader of an IRA splinter group, claims to have information about a nuclear attack on the UK mainland. In exchange for the information, McCann demands that his group be given 30 hours free from surveillance, free to do whatever they wish.