Imagine a world where soldiers regenerate and continue fighting without pause, and where suicide bombers live to strike again. This is the dream of Richard Ridley, founder of Manifold Genetics, and he has discovered the key to eternal life: an ancient artifact buried beneath a Greek inscribed stone in the Peruvian desert.

When a raid on an insurgent safehouse reveals a clue to decoding the world's most mysterious manuscript—and possibly a recipe for creating the ultimate weapon of mass destruction—Delta operator Jack Sigler must forge a new black ops team to avert catastrophe, a team of deadly warriors with dangerous secrets—the Chess Team.

Jack Sigler, call sign King, field leader for a black ops organization known as Endgame, is accustomed to feeling capable of handling most any situation. It is a confidence forged in the fires of battle against both monsters and madmen. But the introduction of Asya, a sister he never knew existed, and the kidnapping of his parents has him reeling.

While on the trail of a stolen tactical nuclear weapon, Jack Sigler, call sign King, and his black ops Chess Team answer a cry for help. The Democratic Republic of the Congo is on the verge of exploding into another bloody civil war that will engulf all of Africa and put millions at risk, a crisis too politically volatile for any outside nation to touch. As the team, unfettered by political constraints, deploys across the globe, the threats spin out of control.

Still recovering from the tragic loss of a good friend, Jack Sigler, call sign King, leads the Chess Team—a crew of former Delta operators—back into action.