The Popadopolis' visit Lizard Flatz Arizona and there they encounter Dusty, a man with interesting stories, a ranch, and moonhunter, a horse that seems to be a legend, but ends up a reality after saving Webster from a rattlesnake. Moonhunter gets caught by some greedy no-gooders, and Webster almost gets killed.

George wants to live on the ranch, Webster wants to save moonhunter and set him free, and after all the excitement, they decide to head back to Chicago.