Told through a series of interweaving dramatic stories, The Valley Below chronicles the life of a small town over the course of one year. The film's protagonists include a pregnant teenager, a hard-drinking musician, a reclusive taxidermist, and an ambitious RCMP officer.

When her parents are killed in a sudden car accident, television actor Frankie King (Alana Hawley Purvis) returns to her hometown in rural Alberta to face this tragedy after being estranged from her family for 20 years. As she struggles to reconnect with her brother Grayson (Joe Perry), old wounds are reopened and family secrets uncovered.