After a prologue (La llave) imitating an Eastern European black-and-white short film,[2] the story is told in a retrospective way.

P. Tinto, thinking they are children due to their short stature, decides to adopt them and treat them as kids, despite their protests and their adult behavior.

However, P. Tinto has another plans for Pancho when he learns the contract with the factory´s biggest client, The Vatican, is about to be cancelled, and tries to lure Panchito into the business.

While Panchito tries to propose a new product (pizza) for the business, P. Tinto gets angry and locks his son in the attic, where he learns that the UFO got broken during a test run in a weird accident.

Meanwhile, Pancho Jose seduces Olivia (that complained a lot about a pain in her low stomach) and the woman dances the next morning in a burst of happiness just to be run over by a train.

In a mid-credits scene, it is revealed that the stranded Martian was found in the road and, while he insisted that he is an alien, is again mistaken as a kid and adopted by a big family along with another African orphan.