What do you do when you are an effervescent teen called Polly and you have a dad who is the skipper of a luxury liner? You ask him to take you on a cruise to Rio of course. What if Captain Bradford refuses and wants you to stay in your boring boarding-school? You stow away, it goes without saying. What if you want to become a singer? Well, you try to convince an operatic star on board of your singing skills. What if Daddy objects to realizing that her daughter's new friend Laura has a crush on him? Just play Cupid for him.Don't you worry, all will end well!