Pepe Estrada, a 15 year old goatherd in the village of Muzo, Mexico, is fanatically devoted to his flock especially since his father was killed by a tigre (jaguar) protecting the herd. Pepe, whose only weapon is a crude spear, is intrigued by the rifles of the Sam Jackson who has come to hunt in the surrounding jungles. Though Uncle Ruiz, the ""town philosopher"", believes that Sam in an evil spirit, Pepe rebels against this superstition and goes out to hunt the tigre with his new friend. The jungle filled with ocelots, wild cattle and tigres forms an exciting backdrop for the encounters with the deadly animals. The price of freedom from these wild marauders is high -- in this case the lives of two men and countless animals, -- but the rewards of victory are impressive. The skillful contrast between gentle, brave Pepe and rough and ready Sam adds color to a suspenseful tale.