Before time was time a fierce battle began between the first beings of the universe. Lucifer and an army of fallen angels rebelled against the Creator and began the longest and most terrible of wars. The war of heaven affects the human race, and the angels watch with despair as humans fall to the temptations of power and evil that Lucifer offers. The final battle is near, and this time there will be no truce. Both armies rely on an ancient prophecy that could end the war, when the chosen one, a kid half human half angel recovers the fire sword and gives the victory to one of them. The end of the world its near.

When a worker is found murdered on the construction side, the investigation swiftly turns from things criminal to the political circumstances surrounding the building itself. Widespread corruption and neglect by the builder himself are seen to have brought the situation about. Much of the movie is filmed using hand-held cameras, and the majority of the dialogue is in the difficult-to-understand and very slangy Spanish dialect of Mexico City's bricklayers.

Sebastian and Valeria are about to get married. Everything seems perfect but a woman tries to seduce Sebastian while Valeria is pregnant.