Molly begins to suspect that Lester is involved in the murders, but her boss points her in a different direction. Meanwhile, Malvo investigates the plot against a man known as the Supermarket King.
Malvo flips the script on the blackmail operation. Molly sets a trap, and Gus debates whether he should come clean. Lester's return to work has complicated repercussions.
Molly recuperates from her injury, while Malvo looks to dispatch a syndicate in Fargo. Lester continues his descent into darkness with the unfolding of his plan.
Floyd takes action and Charlie tries to prove himself; Peggy and Ed disagree about what to do next; Lou finds himself sidelined during Ronald Reagan's campaign tour.
Deafy and Odis join forces, Josto seeks revenge, Oraetta finds new employment, Gaetano makes a move, and Zelmare and Swanee help the Smutneys with their debt.