A group of terrorists cause chaos in a small mexican city, now Mario, the town's mayor, and a special forces group must restore peace in the city.

Alberto has come back to town several years after he made a promise that he made with Rosita, who has forgotten the promise since they were kids. Felipe, the other lover, beats Alberto up and frames him for a murder. Initially Facundo, father of Felipe and influential landowner, made everything possible for Alberto to pay for his supposed fault without realizing who it was really about. Making Alberto's return the more bloodier.