John Puller is a former war hero and now the best military investigator in the U.S. Army’s Criminal Investigative Division. He is a loner with few possessions by preference, but he has an indomitable spirit and an unstoppable determination for finding the truth. His father was the most decorated U.S. Marine in history, but now resides in a nursing home far from his battlefield glory. Puller’s older brother, also a military vet, is serving a life sentence in Leavenworth Penitentiary. Puller is called out to a remote, rural area far from any military outpost to investigate into the brutal murder of a family....

Every day without fail, Travis Devine puts on a cheap suit, grabs his faux-leather briefcase, and boards the 6:20 commuter train to Manhattan, where he works as an entry-level analyst at the city’s most prestigious investment firm. In the mornings, he gazes out the train window at the lavish homes of the uberwealthy, dreaming about joining their ranks. In the evenings, he listens to the fiscal news on his phone, already preparing for the next grueling day in the cutthroat realm of finance. Then one morning Devine’s tedious routine is shattered by an anonymous email: She is dead.

Amos Decker is a former professional football player whose career was ended by a terrible hit. Now a police detective, Amos is still haunted by a side effect from the accident he can never forget. One night Decker comes home from a stakeout to find his wife, young daughter, and brother-in-law horrifically murdered. Obviously scarred and nearly broken, Decker has to use his skills as a detective and his unusual brain capacity to try to catch the monster who killed his family.

Will Robie may have just made the first - and last - mistake of his career.... It begins with a hit gone wrong. Robie is dispatched to eliminate a target unusually close to home in Washington, D.C. But something about this mission doesn't seem right to Robie, and he does the unthinkable: He refuses to kill. Now, Robie becomes a target himself and must escape from his own people.

Fleeing the scene, Robie crosses paths with a wayward teenage girl, a 14-year-old runaway from a foster home. But she isn't an ordinary runaway....

Killing Floor is the first book in the phenomenal best-selling Jack Reacher series by Lee Child. It introduces Reacher for the first time, as the tough ex-military cop of no fixed abode. Trained to think fast and act faster, he is the perfect action hero for when times get tough.