Catalonia, Spain. In a village on the Costa Brava, José, an Andalusian emigrant, works as a bricklayer while waiting for his wife Juana and his two children to join him.

Portrait of the life of an amateur boxer, who falls into the hands of a cruel manager while turning into professional.

An antique hustler, a couple of thieves, one pickpocket, a seductive man ... These are the elements of the criminal gang led by "the Brain". Together they aim to make a big score that allows them to retire. "The Brain" master of manipulation, has assigned a role to each one separately, but only he knows all the secrets of the plan.

Juan is a boy whose sister has been evicted by science. Despite his young age, he realizes the problem, and with the intention of finding a solution, he undertakes a long journey during which he will suffer multiple vicissitudes, adventures, and dangers. Some strange beings, who descended from a spaceship, will try to help him, but everything is useless.

The improvised spy, Jaime Bonet, must go to Barcelona to recover a stolen microfilm which is hidden in a soccer ball.