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 the jailhouse, Chance holds on until th earrival of a U.S. Marshal with only the help of his drunken deputy, Dude, a cranky old man, Stumpy, and the beautiful long-legged Feathers.