Only weeks out of medical school, Dr. Philip Springer sees disaster coming—but the wrong kind. He is forced to substitute for the only doctor in Possum Run, Tennessee, a tiny coal town isolated high in the rugged Appalachian Mountains. To the doctor’s surprise, Possum Run defies many mining town stereotypes. It is peaceful and harmonious and, despite the Depression, offers full employment. But trouble is brewing in paradise. A politically connected miner is endangering the mine, and the huge slag dam high above the town is leaking badly. Even so, under the masterful guidance of his faithful nurse, Philip learns to be a doctor as well as part of the town. Then one day, he and Possum Run face a danger far beyond anyone’s wildest imagination.