After a messy struggle to maintain grip on government, the Home Secretary finds herself appointed as a surprise Prime Minister. Compounding the chaos, MI6 receives intelligence of a fanatical terrorist cell operating in Paris. A sophisticated insider attack on the Home Secretary is being plotted. Her sudden move into No 10 exponentially raises the stakes. Britain's fate now depends on one man: Daniel Jacot. Seconded to the French Foreign Legion, he is handed the delicate task of investigating the leads. He has to tread carefully as France itself is riddled by the election of a new, inexperienced President. And Daniel has his own demons - the traumatic aftermath of combat injuries and a serious addiction that he has kept hidden from his superiors...