After a failed attempt of holdup, Celestino and its friends end in prison. They return to freedom with an amnesty, and they try to find a job. They find a job in the factory of trumpets of professor Liborio; here Celestino meets Marta and falls in love with her, but Liborio, heard that the father of the girl possesses the world only mine of brass in Latin America, seduces and marry her. He then closes the factory of trumpets and moves abroad in order to take advantage of the mine of his now father-in-law. Celestino,bitter with disillusionment, finds another job in one factory of space rockets. One day, testing a rocket, he's propelled in the sky ending up on a tree. Is he allright? "It's the system: it doesn't work"