A French National Treasury van is assaulted and they steal the gold bullion it was carrying. According to confidences received by the Police Headquarters of Barcelona, it seems that part of the gold is clandestinely introduced into Spain through the Pyrenees. In order to discover and eradicate such smuggling infiltration, an agent pretends to be a day laborer at a farm located on the border and in a suspicious area.
Ricardo will try his luck in the capital after winning an amateur singing contest. He has many adventures. Kidnapped by gangsters, he is only freed by the intervention of his fiancée. Finally, the director of the "Folies Parisiennes" presents him with a contract.
A woman disappears after visiting her daughter and realizing her presence was unwelcome by her in-laws. Some time later, a body is found in a nearby lake.
