After seeing some of the young boys, including Mark McCain, wearing masks on Halloween, two thieves decide they have the perfect patsies for their own cattle rustling. The McCains meanwhile have new neighbors, Britisher Percy Bullock and his son Percy Jr. Mark has taken to spending a lot of time with the Bullocks going there almost every evening. When cattle begin to disappear, Lucas fears the worst and thinks Mark might be somehow involved.
—garykmcd