After a decadelong career combating wildfires, Elizabeth has traded in her former life for a quieter one with her husband. Now she works as the local arson investigator in a beautiful, quaint town in the Rockies. But that tranquil life vanishes when she and her husband agree to divorce and a fire in nearby Cooper Basin begins to spread rapidly. For Elizabeth, containing a raging wildfire is easier than accepting that her marriage has failed. For Elizabeth's ex-friend Mindy, who feels disconnected from her husband and teenage children, the fire represents a chance to find a new purpose: helping a man who has lost his home to the blaze. But her faith is shattered by a shocking accusation. As the encroaching inferno threatens the town's residents, Elizabeth and Mindy must discover what will be lost in the fire, and what will be saved.