Rio Bravo is Howard Hawks and John Wayne's right wing answer to High Noon (a movie Wayne called "un-American"). John Wayne is a small town sheriff who's holding a big ranch baron's brother in his small jail until the U.S. Marshall comes through town. The only help he has is an ex-deputy who has become a drunk (Dean Martin), a young gunslinger (Ricky Nelson) and a crippled deputy (Walter Brennan).
There are a couple of song performances in Rio Bravo. Dean Martin sings ""My Rifle, My Pony, and Me" with Ricky Nelson joining in on the song. This is followed by Ricky Nelson singing the old folk song "Get Along Home Cindy" with Martin and Walter Brennan accompanying him.