Reacher suspects a woman on a NYC subway might be a suicide bomber. His investigation draws him into a deadly shadow war with a terrorist cell and conspiracy that threatens his life.

Tamara becomes entangled in the mystery when she, Reacher, and Jacob run into shady government agents and mysterious professional soldiers, all looking for a missing flash drive.

Reacher discovers that the situation is more complex than it seems, as his bond with Lila grows closer. Tamara, Jacob and Plum stumble upon a crucial clue when a new attack forces them to return to Philadelphia.

Reacher talks to Sampson, Tamara breaks into a government structure, Jacob gets bad news, and the team learns information that changes everything.

Following a misunderstanding, Reacher becomes the most wanted man in Philadelphia. Old enemies track it down and new ones appear. Jacob, Tamara and Plum end up involved in a shooting and Jacob avenges his sister's death.

On the run from the police, Reacher and Tamara leave town in search of the mysterious Ahlquist, but they end up in trouble. Meanwhile, in Philadelphia, Jacob and Plum must face their own problems.

Reacher and Tamara finally get the answers they've been waiting for, while Jacob discovers that their woes have just begun when Plum's sources provide crucial information.

Reacher, Tamara and Jacob go on the attack as the real extent of the plot emerges. Reacher confronts those responsible for Anna's death, Jacob is forced to face the truth, and Plum has a chance to redeem herself.