Tomás, a young Mexican boy, is forced to leave his home and family to find work in the city. He arrives in a strange place and is put to work in a factory. The conditions are harsh and the work is dangerous, but Tomás is determined to make a better life for himself and his family. When an accident at the factory leaves him injured, Tomás is forced to return home. He is sad and disappointed, but he knows that he has to face reality and take care of his family.