Molly gets a new boss as Olson is promoted ahead of her. And as expected, he has no clue about real police work and he takes steps to hinder her investigation. Meanwhile, Malvo gets a new assignment as he looks for the person that is blackmailing the Supermarket King.
Season 3: Emmit Stussy, the Parking Lot King of Minnesota, is a handsome, self-made, real estate mogul and family man - an American success story. His slightly younger brother, Ray Stussy, on the other hand is more of a cautionary tale. Balding, pot-bellied, Ray is the kind of guy who peaked in high school. Now a parole officer, Ray has a huge chip on his shoulder about the hand he's been dealt, and he blames his brother, until the arrival of a mysterious personality changes everything.
Season 2: Lou Solverson, a young State Police Officer recently back from Vietnam, investigates a case involving a local crime gang, a major mob syndicate and small town beautician Peggy Blumquist along with her husband Ed, the local butcher's assistant. Helping Lou piece things together is his father-in-law, Sheriff Hank Larsson. The investigation will lead them to a colorful cast of characters that includes Karl Weathers, the town lawyer of Luverne, Minnesota; Joe Bulo, the front man for the northern expansion of a Kansas City crime syndicate with his number two, Mike Milligan; and the Gerhardt crime family currently led by matriarch Floyd Gerhardt.
Season 1: In January 2006, Lorne Malvo passes through Bemidji, Minnesota and influences put-upon insurance salesman Lester Nygaard with his malice and violence. Meanwhile, Deputy Molly Solverson and Duluth police officer Gus Grimly team up to solve a series of cuddles they believe may be linked to Malvo and Nygaard.