General Boris Karpov, head of the feared Russian FSB, is dead but the cyber attack he launched at the heart of the United States' nuclear defence network lives on. Who has taken over the operation? Karpov trusted only one man: Jason Bourne. But can Bourne be working against his own country? Gen. MacQuerrie, chief of the Dreadnaught Section of the NSA and Morgana Broussard, head of the mysterious Meme, LLC, are convinced he is a traitor, and will do everything in their power to kill him. Flushed from cover, hunted by assassins, wounded and nearly killed, Bourne is forced to join forces with his bitterest enemy, a Somali magus named Keyre, whose terrorist organization Bourne once decimated. Now Keyre is more powerful than ever and he might help Bourne, but to what end? Lying in wait is the young woman Bourne saved from torture, who now calls herself the Angelmaker. Both seductive and deadly, the Angelmaker loves Bourne, watches over him, 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 very well bring about the unthinkable: a violent end to America.