While attempting to illegally cross the United States-Mexico border, young orphan boy Juan Diego is singled out by a fellow traveler, a strange old man known only as "Old Indian" claiming to know the way. The old man leads the boy to an old Aztec shrine dedicated to the god of death, Mictlantecuhtli. Explaining that they must give thanks to Tezcatlipoca, the god of sacrifice, Old Indian proceeds to carve a symbol of the god in to Diego's hand. Declaring the boy's blood to be pure, the Old Indian dies in the throes of invocations of Nahuatl, abandoning the boy in the desert.