She is a self-centered woman from a privileged family. He is a preacher with a sense of duty to love the unlovable. She is determined to solve a family mystery. He is on a mission to reach the rejects of society in the remote regions of Montana. On a steamboat journey up the Missouri River, Miss Fannie Rousseau and Reverend Samuel Beck find themselves opposite in every way ... except in wondering if their paths will ever cross again.