Court Gentry is known as The Gray Man—a legend in the covert realm, moving silently from job to job, accomplishing the impossible, and then fading away. And he always hits his target. But there are forces more lethal than Gentry in the world. And in their eyes, Gentry has just outlived his usefulness. Now, he is going to prove that for him, there's no gray area between killing for a living-and killing to stay alive.

A major North American hydroelectric dam is blown up and the largest off-shore oil field in this hemisphere is destroyed in a brutal, coordinated terrorist attack. But there was one factor that the terrorists didn't take into account when they struck the Capitana platform off the coast of Colombia—slaughtering much of the crew and blowing up the platform—and that was the Capitana crew chief Dewey Andreas. Dewey, former Army Ranger and Delta, survives the attack, rescuing as many of his men as possible. But the battle has just begun.

Caught behind the lines of Hitler's Final Solution, Saul Laski is one of the multitudes destined to die in the notorious Chelmno extermination camp. Until he rises to meet his fate and finds himself face to face with an evil far older, and far greater, than the Nazis themselves. Compelled by the encounter to survive at all costs, so begins a journey that for Saul will span decades and cross continents, plunging into the darkest corners of 20th century history to reveal a secret society of beings who may often exist behind the world's most horrible and violent events.

When you're the best at what you do, it's not always easy to walk away. Nathan McBride was retired. The trained Marine sniper and covert CIA operative had put the violence of his former life behind him. But not anymore. A deep-cover FBI agent has disappeared along with one ton of powerful Semtex explosive, enough to unleash a disaster of international proportions. The U.S. government has no choice but to coax Nathan out of retirement.

At 12, Gideon Crew witnessed his father, a world-class mathematician, accused of treason and gunned down. At 24, summoned to his dying mother's bedside, Gideon learned the truth: His father was framed and deliberately slaughtered. With her last breath, she begged her son to avenge him. Now, with a new purpose in his life, Gideon crafts a one-time mission of vengeance, aimed at the perpetrator of his father's destruction. His plan is meticulous, spectacular, and successful.But from the shadows, someone is watching. A very powerful someone, who is impressed by Gideon's special skills.

Josh Duffy is staring into the abyss. A decorated army veteran turned military contractor, his last mission went sideways, leaving him badly injured and his career derailed. Now, he’s working as a mall cop, trying to keep his family one step ahead of the bill collectors. So when a chance at redemption - and a big pay day - comes his way, Duff eagerly jumps in. The job - to ride shotgun on a motorcade of heavily armed and armored vehicles as they roll into Mexico’s cartel country.

Eric Steele is the best of the best - an Alpha - an elite clandestine operative assigned to a US intelligence unit known simply as the "Program". A superbly trained Special Forces soldier who served several tours fighting radical Islamic militants in Afghanistan, Steele now operates under the radar, using a deadly combination of espionage and brute strength to root out his enemies and neutralize them.

Vick "The Reaper" Harwood is an esteemed sniper with a record kill count - 33 kills in 90 days - when he is knocked out under mortar attack in Afghanistan. He wakes up back in the United States with little memory of what happened, his spotter and gun both unrecovered from the battlefield. Harwood has resigned himself to slowly picking up the pieces of his life. But when a series of assassinations start occurring in the area, Harwood can't explain why he just happens to be nearby for each killing - or how a sniper rifle that matches the description of the one he lost seems to be involved.

When nuclear waste is stolen by jihadists in the middle of the night from an unguarded New York City hospital, the police, in a frantic race against time, call in the FBI. Luke Stone, head of an elite, secretive department within the FBI, is the only man they can turn to. Luke realizes right away that the terrorists' aim is to create a dirty bomb, that they seek a high-value target, and that they will hit it within 48 hours.

When college kids hiking near an abandoned military industrial complex in West Virginia mysteriously disappear, special agent Janet Carter - earnest, honest, and fed up with the stifling chauvinistic environment at the Roanoke FBI headquarters - is called in to investigate. Unfortunately, there are no leads - it's as if the three just vanished into thin air.

Jake Noble, Special Forces veteran and ex-CIA operative, is living on his boat, trying to scrape together enough money for his mother's cancer treatments. When the Company offers him 150k dollars to track down a missing girl, Noble has no choice but to delve back into the seedy underbelly of Manila's sex trade.

A code hidden in plain sight. An American black Ops team that went too far. John Hayes, a disgraced elite soldier, returns from exile and risks everything to get back to his wife and daughter and to take revenge on his accusers with a series of escalating attacks inside the United States. Thomas Byrne is the only man who can stop him. Byrne once fought alongside Hayes as a combat medic, but he gave up the gun.

Gregg Kaplan is not an ordinary man, but a man with special skills, courtesy of the United States Government. His assignment is to stay off the grid when he innocently stumbles into a blown witness protection detail in Little Rock, Arkansas. He simply could not walk away from the impending mayhem. After the dust settles, a mortally wounded Deputy U.S. Marshal makes him promise to personally deliver the witness to a U.S. Marshals Service safe site. Not just a promise, an oath.

Private military contractors. They’re not just for foreign wars anymore. Jon Cantrell, a disgraced ex-cop, works for one such company. He’s a DEA agent paid on a commission basis, patrolling one of the busiest drug-hubs in the country: Dallas, Texas.When Cantrell confiscates the wrong shipment of drugs, he finds himself in possession of a star witness in a cartel trial that could destroy the largest criminal organization in the hemisphere.To turn a profit, all he has to do is deliver the witness to the US Attorney in a tiny town called Marfa on the other side of the state.

Cavanaugh, a former member of Delta Force who now works as a protector for those rich enough to afford him and his team, is hired by a brilliant scientist named Prescott who needs protection from a powerful drug lord seeking the highly addictive drug he has invented. At least, that is what Cavanaugh is led to believe.