London, England. An attempted assassination goes awry, leaving multiple people wounded or dead. Jack Noble finds himself in the middle. Now the high-profile politician who was targeted wants him even closer.

Crystal River, Florida. The brother Jack hasn't seen in over six years calls. The news is bad, and Jack has to break the vow he made never to go home.

Jack coordinates a security effort on one continent and investigates a mysterious death on another. Neither task is his specialty.

Jack is left in a position where he can only react to the external forces pulling him in every direction--all while second-guessing his instincts.

Will those instincts be enough to keep himself and those closest to him alive?