Nate Thrower is in Mexico, barely finished with one job when another one literally shows up at his doorstep. He's hired by Manuel Ortiz, a wealthy CEO who's been receiving threats. The threats soon escalate into violence, with everyone in Ortiz' family now directly in danger. People are getting hurt. With things spiraling out of control, Thrower makes a call to an old friend to help him out of the jam. Together, they'll Silence their opponents and eliminate the threat.

Shot in the head and recovering from brain surgery, Delta Force soldier Thomas Nelson wakes up in a military hospital unable to remember who he is. Faced with going through recovery alone, with no family that he's aware of, he is recruited by a top secret government agency. Project Specter is tasked with eliminating targets they deem to be a threat to the United States. Their goal is to turn Nelson into a super assassin named Matthew Cain.

They call him The Nobody Man. At least they used to. One of the most revered CIA operatives, he's been gone for three years to take care of his ailing wife. But now, someone has targeted him and his family. And that's a bad mistake. Because now he's coming.

Jacob Snow—elite soldier-turned-CIA agent, haunted by his tortured past—is one of the CIA’s greatest assets and is dispatched when the stakes are highest. When an ancient Egyptian relic goes missing under mysterious circumstances, Jacob knows this is no run-of-the-mill robbery: The relic holds a secret—one that could destroy everything.

In this follow-up to The Cain Conspiracy, Matthew Cain finds himself on the wrong side of a hit man. After he is sent on an assassination mission in Russia, The Specter Project learns of a man seeking revenge for Cain’s actions. After Cain hears of the man’s intentions, he sets out on a frenetic search to find the killer before he makes good on his plans to kill both Cain and his girlfriend. Along the way, Cain finds more questions than answers about the mysterious assassin, who seems to be a ghost.