Nugget Clark has been having his stagecoaches wrecked and Marshal Rocky Lane arrives to investigate. The foreman of a nearby mine is stealing part of the mecury output and selling…

Someone stole Johnny Mack Brown’s horse. If he can locate his missing horse, then he can prove they are also robbing the stagecoach.

A Pony Express rider discovers some mysterious goings-on during the construction of a telegraph line. When a murder is committed, he is blamed for it.