Over the course of 26 Westerns, director John Ford (then billed as Jack Ford) and star Harry Carey made a winning team. Carey's character, usually known as Cheyenne Harry, faced just about every situation known to cowboys in these pictures. Here he runs afoul of bad guy Dave Bland (Bill Gettinger). Through terrorizing all of those around him with a group called the Phantom Riders, Bland has managed to chase everyone away from the government's grazing land at Paradise Creek. If anyone questions his right to sole usage of the land, the lead Phantom Rider, called "the Unknown" (Vester Pegg), puts a deadly end to the argument. Into this dangerous scenario comes Cheyenne Harry with his small herd of cattle. He finds out about the situation from Grant (Buck Connor) who -- of course -- has a pretty daughter, Molly (Molly Malone). With Molly's help (Harry has taught her how to use a heliograph), and the help of the Forest Rangers, Harry ends Bland's reign of terror.