Lucas Davenport pursues a prolific serial killer who has gone undetected for years in the newest nail-biter by best selling author John Sandford. It was a relatively minor criminal matter, but enough that the U.S. Marshals obtained a warrant to enter the home. They didn't expect to unearth trophies from a score of killings. Now Davenport is on the trail of a serial murderer, one who was able to operate for years without notice or suspicion. But there's...

Mercy Brennan followed in her father's footsteps in a law enforcement career, but she has no interest in any other connection to him. A U.S. Marshal in St. Louis, Missouri, she's assigned to a joint task force with the St. Louis PD that puts her back into contact with her father and in the sights of St. Louis's most powerful gang. When the gang has reason to believe Mercy has possession of some highly sensitive and incriminating information, her...

"Once a respected lawman in Kansas and Oklahoma, Ty Brannigan ended his career as town marshal of Warknife while he was still young enough to marry, start a family, and raise cattle. Now nearly sixty, he's a proud husband, father of four, and proprietor of the Powderhorn Ranch on the outskirts of his old stomping grounds. It's been close to twenty years since Brannigan hung up his six-guns. Now he's more content wrangling cows than criminals . . ....

Deputy U.S. Marshal Raylan Givens confronts the Crowes, a deadly, lawless family from Florida intent on settling in Harlan with new criminal enterprises in mind. Meanwhile, Boyd Crowder struggles to free his imprisoned fiancee Ava as he partners with the Dixie Mafia's Wynn Duffy.

In Season 4, Raylan will start to pick at the thread of a cold case over 30 years in the making, unraveling a riddle that echoes all the way back to his boyhood and his criminal father's bad dealings. Meanwhile Boyd Crowder finds his grip on Harlan loosening due to a Pentecostal preacher with a penchant for theatrics and a knack for manipulation to rival his own.

Season three introduces a new main villain, Robert Quarles of Detroit. The parent criminal organization connected to the Frankfort mafia has exiled Quarles to Kentucky. Quarles begins to muscle in on the local criminals, successfully supplanting them until Raylan begins investigating. Simultaneously, Dickie Bennett, the lone survivor of the Bennett clan, seeks the aid of the black residents of Noble's Holler and their leader Ellstin Limehouse in recovering...