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.

Ex-military policeman Jack Reacher is a drifter. He’s just passing through Margrave, Georgia, and in less than an hour, he’s arrested for murder. Not much of a welcome. All Reacher knows is that he didn’t kill anybody. At least not here. Not lately. But he doesn’t stand a chance of convincing anyone. Not in Margrave, Georgia. Not a chance in hell.

Nathan Tyler is an unassuming professor at a middling American university with a rather obscure specialty in mathematics—in short, a nobody from nowhere. So why is the White House calling? Summoned to Washington, DC, for a top-secret briefing, Nathan discovers that he’s the key to a massive foreign intelligence breakthrough. Reading between the lines of a cryptic series of equations, he could open a door straight into the heart of the Kremlin and change the global balance of power forever.

Meet Victor. He's an assassin - a man with no past and no surname. He lives alone. He operates alone. He's given a job; he takes out the target; he gets paid. He's The Killer. Victor arrives in Paris to perform a standard kill and collect for an anonymous client. He completes it with trademark efficiency - only to find himself in the middle of an ambush and fighting for his life.

Because within ODIN there is General Operations, which speaks for itself; ODIN 5i, which deals with intelligence gathering, and then there is ODIN 1i which deals in operations so sensitive not even the CIA can touch them. All three are run with an iron first by The Chief, a giant with a gigantic IQ. His top agent is Alex Mason, hard and cool – he's a law unto himself.

Defense Intelligence Agency operative Matt Drake broke a promise. A promise that cost three people their lives and crippled his best friend. Three months later, he's paralyzed by survivor's guilt and haunted by the memories of the fallen. Matt may have left Syria, but Syria hasn't left him. In the midst of his self-imposed exile, Matt is dragged back into the world of espionage and assets that he tried to forget. A Pakistani scientist working for an ISIS splinter cell has created a terrifying weapon of mass destruction.

Will Robie may have just made the first - and last - mistake of his career.... It begins with a hit gone wrong. Robie is dispatched to eliminate a target unusually close to home in Washington, D.C. But something about this mission doesn't seem right to Robie, and he does the unthinkable: He refuses to kill. Now, Robie becomes a target himself and must escape from his own people.

Fleeing the scene, Robie crosses paths with a wayward teenage girl, a 14-year-old runaway from a foster home. But she isn't an ordinary runaway....

David Rivers is an elite-level assassin. He’s an expert in the art of violence. Honing his skill first as a Ranger, then as a mercenary, and now as a CIA contractor conducting covert action around the world. But in his secluded mountain home in Virginia, David Rivers lives a double life. There, Rivers is known as a caring husband to his new wife and the doting father to his young daughter. Soft targets to his enemies. Half a world away, on a mission to assassinate a foreign operative, Rivers uncovers his worst fear.

LAPD cop Scott James is not doing so well, not since a shocking nighttime assault by unidentified men killed his partner, Stephanie, nearly killed him, and left him enraged, ashamed, and ready to explode. He is unfit for duty - until he meets his new partner. Maggie is not doing so well, either. The German shepherd survived three tours in Iraq and Afghanistan sniffing explosives before she lost her handler to an IED and sniper attack, and her PTSD is as bad as Scott’s. They are each other’s last chance.

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.