Beautiful peasant girl runs afoul of her landlord's horny son and he poisons the well between her and her fiance, so she runs away and joins the Revolution.

First all Mexican sound film. Story is based on the ancient customs and legends of the fisherfolk as they come into conflict with the exploitation of agents sent by "big business" from the cities.

Cantinflas, the boyfriend of the servant of a rich industrial man, gets into the house in order to kill a mad dog. Suddenly this man appears so the servant tells him that Cantinflas is his wife's brother (Leonardo), who had been lost for years. The rich man then remembers that his father in law's testament could only be paid when all brothers get together, so treats Cantinflas, a real bum, as a king.

Despite the strange death of Jorge's previous wives, Elisa decides to marry him.

In the midst of the Mexican Revolution, the landowner Mendoza manages to get along with both the government and the revolutionary group. For the former, he is a supporter of Huerta. For the latter, he is a Zapata supporter. Depending on the political preference of whoever visits him at his hacienda, he has portraits of Huerta or Zapata put up, and organizes a party in honor of his visitors. However, time goes by and the situation becomes untenable. For whom will he take sides?

The 1910 Mexican Revolution is on its way when six brave peasants, known as "Los Leones de San Pablo", decide to join Pancho Villa's army and help end the suffering in their community by assisting in the struggle. Together, they will endure the tragedies and hardships of a civil war.

In times of the French Intervention, a student of Nunó, author of the Mexican National Anthem, falls in love with the niece of the French Ambassador, which causes quite amusing complications.

Fisherman Quino and his wife Juana are very poor and desperate because the town's foreign doctor refuses to treat their son Coyotito, who has been bitten by a scorpion. When Quino unexpectedly finds a magnificent pearl in the sea, Juana senses that the discovery will only bring them misfortune and tries to convince her husband to return it to the sea.

Two journalists, Carlos and Lola, investigate the murder of a young woman whose body appeared with her heart torn out, in what seems to be a human sacrifice. The investigation leads the reporters to a museum, whose director is the famous Doctor Gallardo.

A gang of thieves has jeopardized the city and even the police, whose chief urges their forces to captured the band within 48 hours. Meanwhile, band members meet in a cafe run by a widow and her daughter and her suitor, Cantinflas, who maintains a scuffle with the robbers running all at the station. Since then, Cantinflas become a member of the police force for special missions.