Lethal operative Scot Harvath is dispatched to avenge the killing of American citizens abroad in #1 New York Times and #1 Wall Street Journal bestselling author Brad Thor’s new pulse-pounding thriller.

In the war-ravaged borderlands of Ukraine, a Russian mercenary unit has gone rogue. Its members, conscripted from the worst prisons and mental asylums across Russia, are the most criminally violent, psychologically dangerous combatants to ever set foot upon the modern battlefield.<...