When her breast cancer returns, Kat Jamison retreats to the Blue Ridge Mountains to make a difficult decision: can she face another round of chemotherapy? Her solitude is quickly broken when two holidaying children move in nearby, Lily and Nirav. But when lightning ignites a raging forest fire, Kat's cabin is cut off from the rest of the camp, separating Lily and Nirav from their parents. Left with no choice, Kat, the children, and the dogs must flee on foot away from the ravenous flames. As a frantic rescue mission is launched, Kat drives the party deeper into the mountains to escape the inferno.