A sinister group—code-named Zodiac—has launched a series of devastating global attacks. Twelve targets across the world, twelve code-named missions. Operating distinct sleeper cells, they are the ultimate terrorist organization, watching and waiting for a precise moment to activate the next group. It’s a frightening and deadly efficient way to stay one step ahead … and cause the most chaos. For ex–CIA operative Jed Walker, chaos is his profession. Burned by his former agency, he is determined to clear his name. Stopping Zodiac is the only way.

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.

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.

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.

Before he was considered a CIA superagent, before he was thought of as a terrorist's worst nightmare, and before he was both loathed and admired by the politicians on Capitol Hill, Mitch Rapp was a gifted college athlete without a care in the world...and then tragedy struck.