Fernando (Fernando Fernan Gomez), is a young man who has just completed military service in a cavalry regiment. This regiment has received the order of motorize and therefore must sell all their horses to a manager of the bullring that provides horses to the picks. Hence, Fernando decides to buy a "Bucéfalo", the horse that has been his partner during this time and returns to Madrid taking away the animal. Everything has changed, the city is no longer the same does not find stables, and, not even have time to assist it.