When former SAS captain David Shelley goes looking for an old comrade who has taken to a life on the streets, he finds his friend is dead. An MI5 agent contacts Shelley and arranges a meeting. All the signs point to murder, and the agent believes this is part of something much bigger. The only way Shelley can discover the truth is to put himself on the streets, and into the same danger that got his friend killed.

Ex-DEA agent Jesse Warden has seen enough of the inside of a solitary confinement cell to last him a lifetime. Or two lifetimes, which is the sentence he's serving after being convicted of a plan he was planning to commit, but never did. So when an old buddy shows up with a deal that could spring him from his hell behind bars, he's ready to listen. To gain his freedom, Jesse must infiltrate a dangerous and reclusive religious cult that has been...

In Virginia, there is an agency bearing the bland name of Technical Operations Support Activity (TOSA). Its mission is to find and eliminate those so dangerous to the United States that they appear on a document known as the Kill List. Recently added to the list is a terrorist of frightening effectiveness called the Preacher, who radicalizes young Muslims abroad to carry out assassinations. Unfortunately for him, one of his targets is a retired Marine...

"Doing time in Texas is no picnic. But getting sent to The Walls in Huntsville is a fate worse than hanging. If the guards don't kill you, the prisoners will. And if it weren't for the fact that the man who framed Hank Fallon and murdered his family could be inside The Walls, Hank would never step one foot in that heinous helltrap--let alone go undercover as an inmate. But this isn't just another assignment. This is his chance for revenge ... Inside...

"When ex?military contractor John Knox receives a text from partner Grace Chu warning that she fears her cover may have been blown while on assignment, he jumps into action. Knox must locate her overseas handlers, convince them of the threat, and then attempt to retrace the well-hidden steps of a woman who had been attempting to determine how one million euros? worth of AIDS vaccine disappeared, all while eluding angry poachers on a parallel trail"--Amazon.com....

In the wake of a series of murders involving covert intelligence informers, Delta Force Lieutenant Colonel Charley Castillo wonders about vague similarities between the killings and a recent case involving a pair of CIA traitors

Charlie Castillo's secret unit has been disbanded, but that doesn't mean he's out of business. A FedEx package arrives, bearing photos of barrels containing some of the most dangerous biohazard materials on Earth, all of which were supposed to have been destroyed during a raid on a secret Russian factory in the Congo. Who has them, and what do they want? Castillo has a feeling he's not going to like the answers.

Florida Department of Law Enforcement agent Bill Tasker is still smarting from a run-in with the FBI that almost got him killed when he reluctantly teams up with them again on a case involving a stolen Stinger missile. The op goes smoothly enough (though the feds take all the credit; what else is new?), but something about the whole set-up just doesn't feel right to him. He pokes around a bit and stirs up more trouble than a nest of rattlesnakes:

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"Letty Davenport, the tough-as-nails adopted daughter of Lucas Davenport, takes on an undercover assignment that brings her across the country and into the crosshairs of a dangerous group of hackers"-- Letty Davenport's days working a desk job at are behind her. Her previous actions at a gunfight in Texas--and her incredible skills with firearms--draw the attention of several branches of the US government, and make her a perfect fit for even more...