 Trapper Wintrop lives in a lonesome hut in the mountains, together with his father, son Tim, his wolf dog Buck and the dumb scout Matt. When a gang of villains robs and kills grandpa in their absence, they further on are determined to hunt them down. Shortly after they arrive the last minute to save Corinne from the very same gang. However her father dies, so they offer the young woman to live with them.