Liz Carlyle, MI5's liaison with French intelligence, investigates Birmingham's New Springfield mosque, which has disturbing ties to Pakistan and terrorism. Meanwhile, UCSO in Athens, worried that its ships are being specifically targeted by pirates, wonders if there's a leak in the organization.

"After five years' silence, a British intelligence asset has made contact from Moscow. Claiming to be in possession of an explosive piece of information, he wishes to defect to the West. The carefully-planned operation however goes catastrophically wrong, the would-be defector ruthlessly betrayed by a rogue element at the highest level of US government. As a result, MI6's Margo Lane is ordered to deliver a message the White House won't forget. It's...

While investigating an arms deal in Yemen, Liz Carlyle and her counter-espionage team discover that the weapons being sold during the Arab Spring have originated in the UK.

June 1940. As German troops pour across France, the veteran soldier and adventurer Richard Hannay is called back into service. In Paris an individual, code-named 'Roland, ' has disappeared and is assumed to be in the hands of Nazi agents. Only he knows the secret of the Thirty-One Kings, one upon which the future of Europe depends. Hannay is dispatched to Paris to find Roland before the Germans overrun the city. On a hazardous journey across the battlefields...

"London 1909: The British Empire spans the globe, seen as an invulnerable imperial power. But Captain Vernon Kell, head of counter-intelligence at the War Office, knows better. In Russia, there is revolution in the wind; in Germany, an arms race; and in London, the streets are alive with foreign agents provocateur. Kell wants to set up a Secret Service, an agency with a mandate to act domestically and abroad to protect the Empire, but to convince...

"Jayne Sinclair is back and this time she's investigating her own family history. For years, Jayne has avoided researching the past of her own family. There are just too many secrets she would prefer to stay hidden. Then she is forced to face up to the biggest secret of all; her father is still alive. Even worse, he is in prison for the cold-blooded killing of an old civil servant. A killing supposedly motivated by the betrayal and death of his mother...