When young minister Noah and his dutiful wife arrive at their new post in the hills, they find a gray and wet little town where it's been raining for as long as anyone can remember. Noah's wife is determined to help her husband revive this soggy congregation, but soon finds her efforts thwarted by her eccentric new neighbors. As the river water swallows up the houses, the telephone poles and the single highway out of town, Noah, his wife and the townspeople must confront not only the savage forces of nature but also the fragile ties that bind them to one another.