There's a showdown at Rio Bravo when courageous Sheriff John T. Chance throws the brother of evil cattle baron Nathan Burdette in jail for murder. When Burdette's men lay seige to his jailhouse, Chance holds on until the arrival of a U.S. Marshal with the help of his drunken deputy, Dude, cranky old man Stumpy, and the beautiful long-legged Feathers.