Juan Luis and Dimas arrive to the "Venta del Catite", a tavern run by Rafael and his goddaughter Reyes. The tavern is frequented by tuna fishermen in the region, but in reality it is a cover for smuggling. Rafael decides to hire a beautiful singer, Raquel, to distract customers and the two new arrivals, so that he can do his business without being disturbed.
Agent Raúl
In a poor neighborhood in Mexico City, two gangs of kids fight for control of the center where they work as "boleros", musicians or announcers. "Completo" joins the gang led by "Rorro", a rival of the group headed by "Curricán".