A young doctor rejects his older outlaw brother Johnny who put him through medical school by dubious means. The brothers find themselves on opposite sides of a range war between homesteaders and a crooked cattleman.

Amy Lindel, a church choir singer, goes to the city to pursue a singing career, but finds herself only able to get cabaret gigs. She then becomes entangled in a situation involving stolen diamonds, and is saved by the "good guy" whom she later marries.

A struggling young engineer, Bob Sanderson, refuses to marry the very-rich Edith Stuart until he can support her on his own earnings. He goes to work for her father as a messenger in the telegraph business, and, via his engineering skills, discovers a plot to kidnap Edith.

A New York radio personality travels to the small town of Fernville to oversee a contest to identify retired safecracker Jimmy Valentine, believed to be living there under an assumed name. The close-knit town of upstanding citizens is understandably upset by this venture, all the moreso when some of its citizens begin to be murdered. The radio personality and the local newspaper's young daughter collaborate on solving the murders while revealing Valentine, who has become one of the suspects.

A young man looks for a thoroughbred horse that was got lost during a train wreck.

The mysterious Don Del Oro ("Lord of Gold"), an idol of the Yaqui Indians, plans to take over the gold and become Emperor. Francisco was put in charge of a legion to combat the Yaqui tribe and protect the land, but when attacked Zorro came to his rescue. Francisco's partner recognized Zorro as the hidalgo Don Diego Vega, then ask him to take over the fighting legion as his alter-ego Zorro.

Jack Manning (Tim McCoy) arrives in a midwestern town from Gold Creek in Califonia. He brings a message from Goerge Woods (Francis Ford) to his brother Tom Woods (Francis Ford), in a dual role, and niece Mary (Allene Ray, informing them he has struck gold and asking them to join him in California via a wagon train. Jack and Mary fall in love to the great displeasure of Rance Carter (Wilbur McGaugh) who has a yen for Mary himself. Jack and Mary not only have to be wary of Carter's crooked ways and machinations, but also of Indian uprisings, caused by Carter.

Molly O'Day and her brother, Josh, are homesteading on and trying to make a living on a piece of government land, but local rancher Dave Crenshaw claims the land is part of his holdings, and he and his henchmen try to drive the O'Days off. Cowhand Jerry Wilson and his dog, Dynamite, come to their aid against Crenshaw.

Molly White, the new schoolmistress at Silver Creek, makes the acquaintance of Jack Brooks, a wealthy eastern sportsman, when his pedigreed police dog, Dynamite, saves her from serious injury, and they become fast friends.

Heralded as a "Universal Thrill Feature," this minor outdoor melodrama starred Dynamite, one of canine phenomenon Rin Tin Tin's legion of imitators. Veteran actor Edmund Cobb headed the human cast as Captain Tom Grant, a Texas ranger impersonating an outlaw in order to infiltrate a gang of smugglers.