Tragedy strikes a married couple vacationing in the Moroccan desert, which jumpstarts an interlocking story involving four different families.

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.

Five Mexican street urchins steal a dime from the church's collection box and bet it on a race-horse.

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 imagined apocalypse is presented to us through portraits of people struggling to survive in a hostile environment, where they only have themselves and the only thing they have in common is the desire to live, no matter the cost.