The killing of a political leader shatters the peace of a small Mexican town. MANCO, the brother of the murdered presidential candidate knows the killer and sets out to exact his revenge. Arriving to investigate the assassination is special agent AMIGO from the Mexican Intelligence. Amigo quickly strikes up a friendship with a local hotel owner who fills him in on the town's seedy characters and gives Amigo a Single Action revolver. The stage is set for Amigo and Manco to join forces and take down the powerful and dangerous CAMARO family responsible for the murder and the corruption of the town. To gain the confidence of Camaro, Amigo breaks his top henchman out of jail. Amigo is welcomed into the Camaro gang. Camaro soon discovers Amigo's connection with Manco and plots to take him out. The situation reaches a boiling point on the US/Mexican border when Amigo, Manco, and Camaro meet for an old-fashioned Western shootout where truth and justice prevail in one single action.

Pelo Suelo follows Gloria Trevi, an aspiring singer who works in a Monterrey bar, performing her own compositions, and dreams of going to the capital to start a professional career. After a rather awkward encounter with a famous singer, Gloria finally decides to leave the bar where she has worked for so many years to seek her fortune in the capital. On the way to her destination, on a motorcycle trip, Gloria will be accompanied by Ricky, a boy who escaped from a kidnapping carried out by a gang that will not stop chasing the boy until he returns the stolen diskette, which contains information on the modus operandi of your organization. Meanwhile, in the city, a producer in crisis argues with his star singer and decides to look for new talent for the record company. After receiving an amateur recording of Gloria sent to him by the bar owner, the producer won't stop until he finds her.

During the rainy Christmas season, a troupe of five actors who are college students lose their way in the mountains of Hidalgo when they try to take a short cut. With their van in need of repairs, they are stranded in a village where a local boss, Don Elias, pays peasants to log the forest illegally. The five collegians have little sensitivity to village ways and are shocked to be treated as foreigners in their own country. When two of them witness assaults on the town's priest and on a harmless simpleton, and when Don Elias frames the troupe for murder, their cries of innocence fall on deaf ears. Vigilantes call for their deaths and give chase. Will anyone help them?