A married couple loses their children while on a family trip near some caves in Tijuana. The kids eventually reappear without explanation, but it becomes clear that they are not who they used to be, that something terrifying has changed them.
Courageous newspaper editor Manuel Acosta Mesa tries to take on the mob in Tijuana through his newspaper, reporting on the violence, prostitution and drug sales in the border town.
An overweight California slob hears his brother's been killed in Tijuana and goes down to investigate. Once there he meets an odd assortment of characters, all of whom either knew his brother or in some way were involved with him.