Working undercover is all about trust - getting the target to trust you and then betraying them in order to bring them to justice. But what do you do when you believe an undercover cop has crossed the line and aligned herself with the international drugs smuggler she was supposed to be targeting? When a deep-undercover cop stops passing on intelligence about her target, MI5 sends in Dan 'Spider' Shepherd to check that she is on the straight and narrow. Now two lives are on the line - and Shepherd discovers that the real danger is closer to home than he realised. As Spider finds his loyalties being tested to the limit, an SAS killer is on a revenge mission in London and only Spider can stop him.

Friendships forged in the heat of combat can be stronger than anything. So when SAS trooper Matt Standing is told that the former Navy SEAL who saved his life is in trouble, he doesn't hesitate to go to his aid - even if that means flying half way around the world to Los Angeles. Navy SEAL-turned-bodyguard Billy-Bob Barnes has been accused of killing the man he was supposed to be protecting. Three other bodyguards were also killed and now Billy-Bob is on the run. The dead client was a Russian oligarch with connections to the Kremlin. But who wanted him dead? And if Billy-Bob wasn't the killer, who carried out the assassination and why is Billy-Bob being framed? Standing is the only man who can answer those questions - providing he can stay alive long enough.

How can you follow orders if those orders are to kill a friend? A Navy SEAL has gone rogue, selling his skills to the highest bidder as a professional assassin. Ryan French no longer cares who he kills so long as the price is right. His former bosses want him taken down, but they're not prepared to get their hands dirty so they need a Brit to do the job. SAS trooper Matt "Lastman" Standing is a lethal killing machine with experience in Afghanistan, Iraq and Syria. Plus he's worked with French in the past. It's not a mission he wants, but Standing made a bad choice in his past and it has come back to haunt him. Now he's hunting French in the lawless Wild West forests of Humboldt County, where the US produces most of its legal - and illegal - cannabis. But French isn't the only predator in the wilderness - there are Mexican cartels, Russian Mafia and Hungarian gangsters - and Standing has to overcome them all to get to his target.

The SAS are used to deaths during combat - it goes with the turf. But when one of their own is said to have committed suicide in Thailand, red flags are raised. Pete Green wasn't the sort of soldier who would ever take his own life - and no one is more sure of that than his twin brother, Davie. Davie is determined to fly to the Land Of Smiles to find out what really happened to his twin brother. But if he is going to find out the truth he'll need help - the sort of help only SAS Sergeant Matt Standing can provide. But soon after they arrive they come under attack, leaving Standing to investigate on his own. There are clearly people who want to shut down all enquiries and Standing knows he will have to use all his SAS jungle skills to survive. This will be the toughest of assignments but nothing will come between him and the truth ...