In the midst of a grueling training exercise, Thomas Crocker, USN, unearths a pocket of terrorism that leads straight from the slopes of K2 to the cities of Europe and the Middle East. Crocker and his team, who are trained for the most intense kinds of combat in the most extreme environments, must blaze through a perilous web of terrorist cells to track down a ruthless sheikh who is running an international kidnapping ring before his captives pay the ultimate price.

Meet Kolt Raynor. A Delta Force operator and one-time American hero, he is still trying to make sense of his life - and duty - after a secret mission gone bad. Three years ago, in the mountains of Pakistan, Raynor made a split-second decision to disobey orders - one that got some of his teammates killed and the rest captured. Now he’s been given a second chance to do right by his country, his men, and himself. But Raynor’s shot at redemption comes at a price.

Beecher White, a young archivist, spends his days working with the most important documents of the US government. When Clementine Kaye, Beecher's first childhood crush, shows up at the National Archives asking for his help tracking down her long-lost father, Beecher tries to impress her by showing her the secret vault where the President of the United States privately reviews classified documents. After they accidentally happen upon a priceless artifact - a 200-year-old dictionary that once belonged to George Washington, Beecher and Clementine find themselves suddenly entangled in a web of deception, conspiracy, and murder.

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.

Navy SEAL Keith “Chunk” Redman has been one of the military’s top doorkickers since the day he pinned on his trident: loyal, single-minded, lethal. Tasked to lead a new, covert team of Tier One SEALs—the most elite special operators in the world—Chunk can no longer simply rely on the status quo. To safeguard America, he needs help to stay a step ahead of its adversaries.

John Dempsey's life - as an elite Tier One Navy SEAL named Jack Kemper - is over. A devastating terrorist action catapults him from a world of moral certainty and decisive orders into the shadowy realm of espionage, where ambiguity is the only rule. His new mission: hunt down those responsible for the greatest tragedy in the history of the US Special Ops and bring them to justice.

When elite Navy Seal Troy Stark is forced into retirement for his dubious respect for authority, he dreads the quiet life awaiting him with his brothers and buddies in Yonkers, New York. But the quiet doesn’t last long: The NYPD needs Troy’s military expertise to help find and stop a major terrorist threat to New York City. To pre-empt the attack, they need him to fly to Europe and stop it at its source—using any means necessary.

Before he was an assassin, David Rivers was a patriot. One year after the 9/11 attacks, he serves as an Army Ranger in Afghanistan. His patrol enters the Shigal Valley, a desolate place with a fearsome reputation for enemy fighters - a reputation that David is about to experience firsthand. As the first shots ring out over the valley, David must decide between military orders and gut instinct...and in the process, discover a hidden truth about himself.

Charged with spotting terrorist threats, the top-secret "Campus" has its hands full when Middle East thugs and Colombian drug lords join forces. New Campus recruits include Jack Ryan Jr., son of master spy John Patrick Ryan, now President.

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.

Alex Brandenburg: SEAL Chief Petty Officer and Outcasts Team Leader. Disobeyed direct orders by refusing to let a deadly terrorist live to kill another day. Francisco “Pancho” Rodriguez and John Landry: SEAL Petty Officers First Class. Took the pursuit of justice into their own hands with explosive results. Catherine “Cat” Fares.

Former CIA officer James ‘Wes’ Wesley paid the ultimate price for his patriotism when he was locked up in a French jail for an anti-terror operation gone wrong--abandoned by the Agency he served, shunned by his colleagues and friends, cut off from his family. Now he is shattered by the news that his ex-wife, Rachel, a State Department analyst, has been killed in a terrorist attack in Spain. He also discovers that his young son, Ethan, is missing. But Wes didn’t know he had a son--until now. Why was Rachel in Spain? And why did she keep his son secret from him?

Evan Smoak is a man with skills, resources, and a personal mission to help those with nowhere else to turn. He’s also a man with a dangerous past. Chosen as a child, he was raised and trained as an Orphan, an off-the-books black box program designed to create the perfect deniable intelligence asset: An assassin. Evan was Orphan X - until he broke with the program and used everything he learned to disappear. But now someone is on his tail.

Cotton Malone, one-time top operative for the U.S. Justice Department, is enjoying his quiet new life as an antiquarian book dealer in Copenhagen when an unexpected call to action reawakens his hair-trigger instincts—and plunges him back into the cloak-and-dagger world he thought he’d left behind.

When those inside the corridors of power need help outside the law, they know who to call. Jonathan Grave, covert rescue specialist, always gets results. No names. No feds. No trace evidence.