Jonas Nightengale is actually a Christian faith healer that makes a living travelling holding revival meetings and running'wonders' with the assistance of his friend and manager, Jane, along with their entourage. One of the trucks breaks a town in dire need of rain to rescue their crops. Jonas decides to put on a revival meeting in the town, while awaiting for components. Will Braverman, the local sheriff, is doubtful and tries to prevent his town and its own people. Nevertheless Boyd, a local disabled boy, considers Jonas might make him walk back again. Events in Rustwater make Jonas examine his doubts and faith.