As the birth date of her triplets quickly approaches, a frazzled and emotional Rebecca forgets Jack’s birthday. Dr. Katowski struggles with the loss of his wife and wonders how he’ll…

The Gerhardts’ search for Rye intensifies. Lou takes a trip to Fargo. Peggy overhears a new theory about the Waffle Hut shooter.

The Gerhardts get a surprising offer, and two unlikely murderers do their best to clean up their mess.

In 1979, an unexpected turn of events at a diner disrupts the lives of the citizens in a small Minnesota town.