A sheriff saves a Mexican from being hanged for horse theft. In a gesture of thanks, the Mexican writes the word "gratitude" upon a card. After rending the card in two, he gives one half to the sheriff. Many years later the sheriff, still carrying his half of the "gratitude" card, becomes the captive of desperados. One of these greasy varmints grabs a tobacco pouch from the bound sheriff's pocket, noticing the timeworn card...