A chance encounter with a distraught stranger on a Philadelphia subway car draws Jack Reacher into a deadly mystery involving a missing flash drive that contains secrets worth killing for.

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.

When a hotel full of bodies turns Jack Reacher into Philadelphia's most wanted, the former MP must evade police and old enemies while racing to recover a thumb drive before the sisters who killed for it claim their next targets.

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.

Relentless drifter Jack Reacher must stop a chemical weapon auction when a decrypted photograph reveals a lethal formula, but rogue mercenaries threaten global security, all while evading the federal authorities hunting him.