In the last days before signing the peace agreement, an IRA splinter cell mounts an operation on the British mainland using English criminals. This unprecedented move intrigues MI6, and they assume command of MI5’s surveillance operation. A career criminal is released from prison and aims to win back the wife and child his sentence has cost him, but before he can, he is forced back into his old world. The stakes have changed, and his family have become leverage for the most ruthless people imaginable.

A newly formed terrorist group has declared war on the world’s richest people. The choice is simple. The rich can give away their wealth to escape an assassin’s bullet, or they can die. When the wealthiest five people are dead, a new death list will be publicly declared. When a British billionaire is assassinated, MI5 agent Alex King is sent to investigate. With the killings carried out by a sniper of tremendous skill, King’s dark past makes him the best man for the task.

MI5 agents have been executed and more agents have been abducted with no terms received from the kidnappers. An MI5 analyst is missing having accessed and downloaded prohibited security data. The trial of notorious radical cleric Mullah Al-Shaqqaf collapses, his extradition falls apart. A man known to have funded ISIS, recruit fighters for Syria and coerce teenagers to martyr themselves. Again he walks free.

When an MI6 agent is found to be keeping records of his missions to protect himself from betrayal he unwittingly makes himself a priority target. But how do you silence the most dangerous man imaginable? Send him into hell on earth. While Alex King is sent into Northern Iraq to tidy the loose ends of a botched mission, the archipelago of Indonesia is under communist threat from within its own military. A consortium of worried businessmen call for desperate measures and seek the services of an assassin.

Incarcerated in a prison hidden from society, an all but broken man has a terrifying secret. His captors know what he has done, have tortured it out of him, but they do not know everything. All he needs to do to bring down the Western world is hold out for long enough. Still reeling from a CIA double-cross, MI5 need their prisoner back. Alex King accepts a mission of unparalleled risk. But first, he must commit a crime that will see him treated outside the US legal system and get to a prisoner who can destroy or save mankind with the knowledge he holds. 

The agents from an MI5 mission against the CIA are being hunted and killed. With his team dispersed in anticipation of fallout from the operation, King must bring them back together and meet the threat head on. But this is not an official CIA mission, and the driving force behind these acts of vengeance could soon be the most powerful man on the planet.

Realizing the ineffectiveness of America's own counter-terrorism unit, Texas senator J.D. Blunt proposes a black ops program that's so off the books that only a handful of people know about it. Given the reins and funding to construct his own organization, Blunt creates Firestorm and recruits one of the most effective operatives the American government has ever known: Brady Hawk.

Chase Gordon has the life. The former marine works part-time as a bartender to support his life island-hopping on his 40-foot sailboat. When the pretty young wife of one of his fellow marines shows up looking for her husband, Chase steps in to help her out. Immediately, he finds himself in a stand-off between one of South Florida's most dangerous drug dealers and the DEA. Now, he's left wondering what kind of trouble his friend might be facing. Can Chase even save him?

When his mission is shut down from political pressure, deniable MI5 operative Alex King seeks revenge for a team member and takes on the man responsible. But in Washington DC, the political landscape changes so quickly that his enemy is now more powerful than anyone could have imagined.

Matthew Riker keeps to himself, doesn't cause trouble, and never talks about his past. But after a chance encounter with a woman and a small child on the run, Riker will have to make a choice: use his hard-won skills to protect two innocent victims, or stay in the safety of his quiet life. What follows is an adrenaline-soaked thrill ride that will take Riker on a cross-country chase, through the seedy underbelly of a New York criminal empire, and into the darkest places of the human heart.

It’s 1961, and the white heat of the Space Race is making the Cold War even colder. The age of global surveillance dawns. Secret Agent Richard Knox has been hung out to dry by someone in MI5, and he needs to find the traitor in their midst. Meanwhile in a closed city outside Leningrad, top Soviet Scientist Irina Valera discovers the secret to sending messages through space, a technology that could change the world. But an accident forces her to flee.

CIA Black Ops agent John Smith is on his latest assignment in London. Little does he know - it'll be his last. Barely surviving an attack on his life, Smith lays low for six months until he returns to the United States. His flight is strangely diverted to Philadelphia where he meets a mysterious stranger who knows all about his past and recruits him for a job. Needing a new identity, Smith becomes Michael Recker. He then tries to prevent bad things happening to innocent people while also interacting with the city's different crime factions.

When the CIA calls on former Army Ranger Pierce Hunt to find a missing operative and friend, the last thing he wants to do is leave the peace of home and family behind. But there’s more to this mission than meets the eye, and Hunt knows he has no choice but to risk everything to save his friend and protect his country. Hunt’s target is Jorge Ramirez, who allegedly has information that poses a threat to the national security of the United States. As Hunt tracks Ramirez in Switzerland, he learns that someone close to his operation has betrayed the CIA.

Titus Quayle was the best MI6 ever had - an operative of exceptional and lethal ability. But they burned him, abandoned him and left him for dead. Holly Morton is the daughter of the spymaster who first recognised Quayle’s potential and the key to unlocking a global conspiracy her father died trying to bring down. To uncover the truth, Quayle must keep her safe from the threat of a powerful enemy in a globetrotting race against time. Nowhere is safe. 

When Helen Chapman, the beautiful 16-year-old daughter of army chief-of-staff for the European Command in Germany, had gone missing, her father Brigadier General Earl Chapman assumed she sped off on yet another one of her adventures with her boyfriend. However, hours later the body of Helen Chapman’s boyfriend was discovered by German police on the side of the road. They found a ransom letter lying on the front seat of the young man’s car.