Bill finds a Hopi Indian, apparently dead from a rattlesnake bite. Upon investigation, he discovers a plot by white men to attack a wagon train disguised as Hopis.; Three days before Christmas, Bill is summoned by Sheriff Conner of Stirrup Gulch to help him capture a lone wolf killer there. On the way Bill comes across the outlaw as he holds up an old prospector and steals his gold dust. The killer gets away, but not before the prospector sees a rising-sun tattoo on his arm.