Based loosely on historical events in California in 1916, CAVEAT tells the story of Hank Beecham, son of a dissolute Confederate veteran and embittered mother, snubbed by the townspeople of St. Elmo. Hank finds his calling as a rainmaker, saving St. Elmo from a serious drought. When the town doesn't pay him as promised, Hank returns eight years later to exact his revenge.