Sheriff Walt Longmire is back in the saddle and dedicated to serving his community after coming to terms with the devastating loss of his wife. Walt's reign as Sheriff hangs in the balance as he fights for re-election against rival Branch. Vic is visited by the ghost of a past she'd rather forget. Walt's daughter Cady searches for answers about her mother's murder, while Walt's possible connection to the death of his wife's killer threatens to draw...

Drama about an FBI agent who recruits his mathematical-genius brother to help the Bureau solve a wide range of challenging crimes in Los Angeles. The two brothers take on the most confounding criminal cases from a very distinctive perspective. Inspired by actual events, the series depicts how the confluence of police work and mathematics provides unexpected revelations and answers to the most perplexing criminal questions.

A sheriff struggles to turn his life around in the wake of his wife's recent passing.

FBI agent Don Eppes couldn't be more different from his younger brother, Charlie, a brilliant math professor at a California university. Don deals in hard facts and evidence, Charlie thrives in a world of mathematical probability and equations. Don and Charlie often combine their areas of expertise to solve a wide range of challenging crimes in Los Angeles.