Pepe, the young Mexican goatherd, has many battles to fight—against the ominous superstitions of Uncle Ruiz; in defense of his American friend, Sam; and hardest of all, against the killer tigre or jaguar which took the life of Pepe's father and threatened to destroy the family herd of goats, their very livelihood.

In the Mexican wilds, Pepe found that a staunch friend and inherent courage may mean more than a costly rifle, even in meeting the vicious fury of a wounded tigre!