The film takes place in the 1890s or early 1900s, with two men, Purvis and Buddy, attacking and killing travelers camping in plains of the Wild West. After killing several men at a campsite, they steal their valuables and burn any unneeded possessions. However, they desist after hearing a bizarre series of howls in the distance, and make for a nearby valley to avoid any pursuers. While traversing the valley, they come across a burial site, where Buddy is attacked and savagely killed by an unseen figure. Purvis fires upon the figure as it charges at him, and the film cuts to black.