Joe Reacher interrupts the drive of a promising officer in War Plans. When she stops her car, Joe Reacher executes her.

Jack Reacher is briefly assigned a post where he has to oversee the investigation of who killed the officer. Something is fishy when the local cops nab a recluse with no military background and claim it's a robbery gone wrong.

Will he ever figure out it was his brother? Yes. Yes he will because he's Reacher. He's a pure distillation of competence porn.