John Milton is used to operating in the shadows, weaving his way through dangerous places behind a fake identity. Now, to avenge the death of a close friend, he must wear his mask of deception once more. Beau Baxter was brutally murdered by a drugs cartel but that doesn’t stop Milton from blaming himself for his friend’s death. With the help of a trusted team of undercover experts and Beau’s son, Milton is determined to track down the killers. And he isn't just after the man who gave the order. He’s heading right for the top.  

John Milton has a nose for trouble. He can smell it a mile away. And when he witnesses a suspicious altercation between a young man and two thugs in a car auction parking lot, he can’t resist getting involved. Milton came to Kansas City hoping to find a way out of danger. His recent vendetta against a cartel hitman who killed his friend has made him enemies in high places. Now he needs to find the only man who can get him out of this mess. 

John Milton hasn't seen Elijah Warriner for three years. The last time they met, Milton's efforts to keep the boy safe didn't go exactly to plan. Now Elijah is a promising boxer, preparing for the bout that will take him to the big time. Milton decides that he will spend the week before Christmas in London so that he can watch the fight. But Elijah's burgeoning fame has brought him to the attention of old acquaintances with long memories and grudges to bear.

John Milton travels to Bali in search of a new identity, but he can't even manage the flight without finding someone who needs his help. A beautiful woman falls ill and confesses that she has swallowed packages of cocaine in order to smuggle it across the border. She has been forced to work as a mule by a Yakuza gang in Tokyo who are holding her child to guarantee her compliance. Milton decides that's unacceptable and promises to lend her his help.

Rio de Janeiro. Brazilians call it Cidade Maravilhosa - the Marvellous City - but crime festers in its favelas like cancer. John Milton is visiting an old friend who runs a close protection business guarding the city's elite. Milton offers to stand in when one of his bodyguards doesn’t turn up for work. The job? Take the wife and daughter of an anticorruption judge to a school recital and bring them back again. Simple? Not so much. The girl is snatched off the street, and Milton is nearly killed. As he recovers at a Group Fifteen safe house, he decides on two objectives.

New York isn't ready for Britain's most dangerous ex-assassin.... John Milton has finally found a place to escape the bloodshed: off-season Coney Island. No tourists. No special ops. Just peace and quiet. But when a local boy witnesses a grisly murder, Milton can't resist investigating. Milton uncovers a vicious drug kingpin and a group of crooked cops from a notorious precinct known as The Alamo. Against such dangerous foes, Milton's quest for redemption could come to an end.

Eighteen years ago, on a mission in Iraq, Captain John Milton made a reckless decision with serious consequences. But it was Major Connor Gordon who really paid the price. Now Milton is on a different mission: to atone for his past sins. A human rights activist has vanished without a trace and his dying mother is desperate to know the truth. When the mysterious disappearance leads Milton all the way to the Western Isles of Scotland, he sees an opportunity to find his old friend Connor and finally make amends. Milton is determined to track both men down, wherever his search may lead.

John Milton's life is about to change. The former government assassin follows a lead to Manila that he hopes will transform everything. But things don't go to plan. He never expected to wake up in an unfamiliar hotel room beside a dead body. And, unfortunately for him, Milton doesn't remember a thing about the night before.... Thrown into a gruesome Filipino prison, he puts together the clues of his betrayal. With no allies and even less hope, Milton must use his wits to escape and take revenge....

For years, former secret service agent and trained killer John Milton thought he could outrun his past, his demons and his enemies. His enemies had other ideas. Captured and imprisoned by the organisation he once worked for, Milton must do one last job in exchange for his freedom. Bullheaded billionaire fixer Tristan Huxley is brokering a weapons deal between Russia and India. 

An assassin haunted by his past. Two young refugees out of their depth and in need of his special talents. John Milton is no stranger to the world's seedy underbelly. But when the former British Secret Service agent comes up against a ruthless human trafficking ring, he'll have to fight harder than ever to conquer the evil in his path. After Milton meets a refugee who lost a sister to people smugglers, he travels through war-torn Libya and the murkiest parts of Italy and France to get the girl back.

1969. Eloise Shepherd, one of MI6’s brightest rising stars, is working undercover in Soviet Russia as Magdalina Novikova. Her mission is to persuade nuclear physicist Stanislav Kalashnik to defect and bring his knowledge of Russian weapons back to the UK. On the verge of success, the operation fails suddenly and spectacularly. Seventeen years later, Kalashnik is chief engineer at the power plant near Pripyat known as Chernobyl. His concerns for the safety of the plant are growing. 

Meet John Milton. He considers himself an artisan. A craftsman. His trade is murder. Milton is the man the government sends after you when everything else has failed. Ruthless. Brilliant. Anonymous. Lethal. You wouldn't pick him out of a crowd but you wouldn't want to be on his list. But now, after ten years, he's had enough - there's blood on his hands and he wants out. Trouble is, this job is not one you can just walk away from. He goes on the run, seeking atonement for his sins by helping the people he meets along the way.

Ciudad Juárez, Mexico, is the most dangerous city in the world. And when a mission to break the local cartel’s grip goes wrong, Isabella Rose, the Angel, finds herself on the wrong side of prison bars. Fearing the worst, Isabella plays her only remaining card... 

Isabella Rose is on the run, hunted by the very people she had been hired to work for. Trained killer Isabella and former handler Michael Pope are forced into hiding in India and, when a mysterious informer passes them clues on the whereabouts of Pope's family, the prey see an opportunity to become the predators.

Beatrix has returned from Somalia with a fresh target in her sights. Bryan Duffy is in Iraq, surrounded by mercenaries, with no easy way to get to him and no easy way to get out. Will Duffy prove to be a challenge too far?