When a local Forest Ranger mysteriously disappears while warning campers of the forest fire, Maggie and Digger join a search team to help find him. Their rescue efforts become complicated when they discover Zack and Jonah, two young boys who live on the mountain, have also disappeared after they set out to find the Ranger on their own. A temperamental bear and two unsavory moonshine dealers increase the dangers and complicate rescue efforts for the search party. Yet, Maggie and Digger continue to press on through the rugged trails as smoke from the forest fire intensifies.