James Reese has a good job as an ambassador's aid in France, but his real passion is a side gig—working in a minor role in the CIA. He would love to be a full-fledged agent and can't believe his luck when he lands an assignment with Charlie Wax. Trigger-happy Charlie soon has James crying for his desk job, but when he learns that the same guys they're trying to catch are after him, James realises that Charlie may be his only hope of survival.

One morning in an ordinary town, five people are shot dead in a seemingly random attack. All evidence points to a single suspect: an ex-military sniper who is quickly brought into custody. The interrogation yields one written note: 'Get Jack Reacher!'. Reacher, an enigmatic ex-Army investigator, believes the authorities have the right man but agrees to help the sniper's defense attorney. However, the more Reacher delves into the case, the less clear-cut it appears. So begins an extraordinary chase for the truth, pitting Jack Reacher against an unexpected enemy, with a skill for violence and a secret to keep.