US Navy SEAL Jim Schweitzer is a con­sum­mate pro­fes­sional, a fierce war­rior, and a hard man to kill. But when he sees some­thing he was never meant to see on a covert mis­sion gone bad, he finds himself—and his family—in the crosshairs. Nothing means more to Jim than pro­tecting his loved ones, but when the enemy brings the battle to his front door, he is over­whelmed and taken down.

That should be the end of the story. But Jim is raised from the dead by a sor­cerer and recruited by a top secret unit dab­bling in the occult, known only as the Gemini Cell. With powers he doesn’t under­stand, Jim is called back to duty—as the ulti­mate war­rior. As he wres­tles with a lit­eral inner demon, Jim real­izes his new supe­riors are deter­mined to use him for their own ends and keep him in the dark—especially about the fates of his wife and son…