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.

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.

On the eve of his medical retirement, Navy SEAL Jedidiah Johnson receives a frantic call from his estranged childhood best friend, David Yarnell. David’s daughter has been kidnapped off the streets of Nashville in broad daylight. The police have no suspects and no leads. The only clue: the body of a dead priest left behind at the scene. With the clock ticking, David is growing desperate, as is his wife, Rachel...Jed’s first love.

A storm is on the horizon. America’s days are numbered. A Chinese submarine has gone rogue and is navigating towards the continental United States, putting its nuclear missiles within striking distance of the West Coast.

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.