UFO falls on a hillbilly's hencoop and he tries to sell it. Soon international missions are sent to the place, for there's a suspicion it might be the famous Russian satellite, the Sputnik.
A woman impressed by news reports about flying saucers, gets hit on the head by a vase, passes out and dreams that she is the 'Queen of Mars', from where she sends an expedition to Earth in order to bring back Rio's Carnaval to the planet.
A man in charge of a publicity campaign for bananas decides to kidnap the Queen of 'Bananaland', a tropical island paradise, and take her to Rio, where she falls in love with a member of Carmen Miranda's backing ensemble, 'Bando da Lua'.
Manicurist finds out she's the daughter of a rich baroness, and inherits her fortune. Now, she'll have to fight her mother's parents, with help from some of her friends.
Somebody is selling songs for two recording companies, simultaneously. The owner of one of them hires a detective to find out the swindler's identity. But the private-eye is clumsy, and messes things up even more.
In Buenos Aires, Frederico hides in a ship going to Rio de Janeiro to travel for free. But Azulão, the cook, finds him and blackmails him into working in the kitchen. Meanwhile, Alberto, the captain, receives a radio message saying that there was a dangerous international spy on board. Things get worse when some passports are mixed-up.
