https://en.wikipedia.org/wiki/Storm_of_the_Century
Screenplay by Stephen King, stretches the imagination into absurd realms of unreality; nobody has a gun to shoot the evil wizard with or none had the balls to try. That's not how a self-proclaimed mortal and aging ancient sorcerer would end up in America, especially in a hee-haw town where everyone's a religious Fundamentalist. If you like total fantasy it'll be fantastic.