When Special Agent Will Trent arrives in Grant County, Georgia, he finds a police department determined to protect its own and far too many unanswered questions about a prisoner's death and about a policewoman's role in the death of Grant County's popular police chief. Slaughter brings her Grant County and Atlanta characters together for a second time (after Undone), in this thriller.

"Will Trent is undercover at Fort Knox. His assignment: to investigate a twenty-two-year-old murder. His suspect's name: Jack Reacher. Jack Reacher is in Fort Knox on his own mission: to bring down a dangerous criminal ring operating at the heart of America's military. Except now Will Trent is on the scene.But there's a bigger conspiracy at play - one that neither the special agent nor the ex-military cop could have anticipated. And the only option...