The St. Cyrs are a functional family in a dysfunctional world. Homemaker Angela has ambitions to get more involved in town activities, but her primary concern is feeding her family. Adhering to a strict budget while trying to prepare healthy meals for her husband Mike, her mother Ellen, and her two daughters Emily (8) and Kaity (4), Angela may find turning her kitchen into a 100-mile kitchen quite daunting.
Initially, Mike, who works in law enforcement, is just along for the ride, but neither Angela nor his colleagues expect him to stay true to the Challenge. The St. Cyr children, Emily and Kaity, are cooperative but not exactly fans of the Challenge. Grandma Ellen is looking to improve her health and this Challenge may be just the tonic. Over the course of 100 days, this family will be tested and transformed.