Roy goes against a gambler who has organized a Citizens Protection Committee.; BIll enters a shooting to win a silver saddle for Calamity and discovers that one of his opponents isn't playing fair.; An old prospector helps Range Rider and Dick capture a gang that has been robbing post offices in the territory.; Rex and the sheriff chase Chaff and Art to an Indian village where Rex uses a Navaho blanket to help capture them.; A young girl proves to her adopted grandpa that she can ride as well as the regular Pony Express rider.; Johnny testifies in a murder trial.; A man arrives in Mineral City with a wagon load of trees and triggers a gold rush when it's discovered that he has concealed gold nuggets in the bag surrounding the roots of one of the trees.; When an old man is trapped under a fallen wagon, Champion saves the old man from freezing to death while the grandson rides for help.; John Colter fails in his attempt to make a peace treaty with the Blackfeet tribe.; A story about coyotes and their habits.; How the Indians reacted when they saw Spanish explorers riding horses.; How various animals detect and signal changes in the weather.