When her father dies, a young woman must go to Michoacán to take charge of her lands, where she meets a young man and they both fall in love.

A screenwriter falls in love with a Mexican woman while searching for a story line south of the border.

Mr. Dithers invites the Bumsteads on a South American cruise. Somehow Dagwood winds up as the female drummer in the ship's band, while Penny Singleton gets to show off her Broadway background in some lively musical numbers.