"General Boris Karpov, head of the feared Russian FSB, is dead. But he's left behind an unstoppable cyber operation he conceived before his murder: a way to steal the American nuclear launch codes. Karpov trusted only one man: Jason Bourne. Can Bourne be working against his own country? The NSA is convinced of Bourne's treason, and will do everything in its power to kill him. Hunted by the best assassins in the business, Bourne has only one hope: he must join forces with his bitterest enemy, a Somali arms dealer named Keyre. Lying in wait is the young woman Bourne saved from Keyre's torture, who now calls herself the Angelmaker. But from whom does she take her orders? Is she ally or adversary? These are questions Bourne must answer before he can unravel the mystery of Boris Karpov's last legacy, a weaponized code that may bring about the unthinkable : a violent end to America" -- From dust jacket flap.