Chick Crandall, half owner of the Flying A Ranch, returns home after a five-year absence and, because he is suspicious of his foreman Sam Curtis' activities, decides to proceed incognito. Disguised as Harold Montague, his partner's son, Chick works among the ranch hands and discovers that Curtis is rustling cattle and is responsible for driving Barbara Hampton and her aunt from their home.
When chorus girl Nell Gordon (Madlaine Traverse) is betrayed by a married man, she becomes hard and bitter. Eventually, she drifts from New York to the decadent Western town of Gehenna where she's the star of the cabaret.
A dying lady tells a woman she must marry Frank Cameron. She unknowningly marries the almost always drunken Ford Cameron by mistake and immediately flees. Ford takes a job of ranch foreman and gives up drinking. Only after being attacted to a woman on the ranch does he suddenly remember he is already married.
Sheriff's son Royal Beaudry is thought a coward, even by the young woman he has his heart set on. But he disproves cowardice when he rescues his father's friend from kidnappers.
Following in his dad's footsteps, Shefford devotes himself to freeing his community from the grip of a particularly despotic Mormon sect. In so doing, he rescues his foster sister Fay Larkin, who is coveted by lecherous Mormon elder Wagoner. As was the case in Riders of the Purple Sage, the Mormons are villains simply because they are Mormons.
True Blue begins with the marriage of black-sheep British nobleman Gilbert Brockhurst to the daughter of a Western rancher. When he learns that he has inherited his father's title and estate, Brockhurst deserts his wife and young son Bob. Upon attaining adulthood, Bob becomes the boss of his grandfather's ranch.
In this re-edited, re-titled version of 'Conversion of Frosty Blake, The (1915)', some character names are changed but the story, of a New England pastor who goes out west for his health and encounters a gun-toting dance-hall owner and a beautiful dancer, remains fairly intact.
Cowhand Steve Ransom discovers that German spies are operating along Mexican border, relaying their radio messages into Mexico and thus on to Germany. The spies learn that Steve is a fugitive from American justice.