Richard Kingsley, son of a financier, trying to aid Marjorie Crenshaw and her sister during a raid on a New York roadhouse, is arrested. His father, enraged by the bad publicity, threatens to disinherit him if he doesn't go to Colorado in search of a mine....
The dog, Rex, finds the baby abandoned in the mountains. Unfortunately, the nearest town has no orphanage and rough cowboy and wonder-dog owner Bruce is forced to care for the infant himself.
Young Sandra De Hault arrives by ship in Sacramento, California, during the 1849 Gold Rush. While on board she adopted three children whose mother had died during the voyage. While in Sacramento she is saved from the attentions of a violent drunk by Stanton Holliday, an agent for eastern banker John Grey. They fall for each other, but Sandra believes that the daughter of Halliday's boss is in love with him, and not wanting to hurt his career she leaves town.
Visiting his vast properties incognito, Hugh Nichols (Tom Mix) discovers that his land agent (Cyril Chadwick) is forcing Peggy Swain (Clara Bow) and her dad (Frank Beal) off their neighboring ranch. When decent-minded Nichols demands that the agent cease harassing the farmers, the nasty villain blows up the nearby dam, flooding the valley.
Lovely Jessie Stevens falls in love with Jim Sullivan, much to the dismay of Red Collins (L.J. O'Connor), who wants the girl for himself. Red blackmails Jessie's father, Job, into ordering his daughter to forget all about Jim, who takes to the bottle instead.
A fire in the mountains drives a wolf pack into the nearby desert where they terrorize the local residents. The leader of the wolf pack is Lobo, actually a halfbreed (Rin Tin Tin). When the pack is discovered hunting a herd of cows, a posse gives chase. Lobo leaves his pack to lead the posse away. He is injured and found by a local prospector, Dave Weston (Charles Farrell). The prospector nurses Lobo back to health and the two become close friends. Meanwhile, Weston has made a Borax find in the area. His girlfriend May Barstowe (June Marlowe), daughter of a wealthy rancher, is pleased. However, the local chemist, Borax Horton (Pat Hartigan), actually a claim jumper, plans to steal the claim.
Collegian Angelica "Trix" Varden, willful daughter of William Varden, after a midnight spread of lobster and ice cream, has a dream about an adventure on her father's ranch involving her horse Beverly, one Jack Norton, and Buck Barlow's gang of rustlers. She is expelled from school and returns home to find a handsome new foreman, who is none other than Jack Norton. Trix's curiosity is aroused by her dream, and she finds evidence of rustlers. Barlow shows up, and she locks herself in a cabin and sends Jack's horse, Star, for help. Jack finally defeats Barlow in a fight, and the two horses "realize" that they now have both a master and a mistress.
Cowboy Mark King (Tom Mix) comes to the aid of an old miner, Honeycutt (George Berrell) who, in gratitude, reveals the location of a secret gold mine. To get to the mine, however, King must fight an evil claim jumper, Gratton (Robert Cain), whose fiance, Gloria (Alice Calhoun), he once saved from falling off a cliff.
Wondering cowboy Bart Andrews (played by Fred Thompson) gets arrested simply because a crooked sheriff is short on men for his chain gang. A chance visit to a rodeo on the way to jail, gives Bart a chance to demonstrate his bronco-busting skills, which results in the sheriff caving to pressure from a group of cowboys, to allow Bart to work on ranch, rather than joining the road gang. Finding himself in the right place at the right time, Bart is able to prevent the theft of a train full of cattle, but later ends up being accused of killing a station agent when he interrupts the ranch foreman robbing an express office. Bart is eventually able to bring the foreman to justice, and in a surprise twist, it turns out that he was in fact the real owner of the ranch he was working at!
A ranch foreman captures a notorious gang of gold thieves. He ties them up and leaves them for a pursuing posse while he goes out to find the gold they stole. When the posse arrives, the gang's leader convinces them that the foreman is actually the gold thief, and the posse sets out in pursuit of him.
A remake of a 1917 Dustin Farnum Western, Durand of the Bad Lands is the story a rancher falsely accused of a crime actually committed by Sheriff Clem Allison and his henchman Pete Garson.
Real life rodeo champion Hoot Gibson plays Dan Molloy, an expert rider who wins the big one, the Calgary Stampede. When the father of his new French-Canadian girlfriend turns up dead, Molloy is the only suspect!
With little luck at keeping a job in the city a New Yorker tries work in the country and eventually finds his way leading a herd of cattle to the West Coast.
15 chapter serial. Gideon Trask and his henchmen at the saloon in Arkansas City covet the mineral survey of the Louisiana Territory made for Napoleon before the sale of the Territory to the United States. This is in possession of the Heath Brothers, who seek to use it in staking their land when the Oklahoma territory, last of the Louisiana tract to be released by the Government, is opened to Homesteaders.
When a bank is robbed, the cashier is killed and suspicion for the murder unjustly falls on Jim Marden. He gives himself up, and his brother, Wally, promises to run down the killer. Wally, who suspects Mike Wesson, the foreman of the Flying X Ranch, of the crime, goes to the ranch and talks to him. While at the ranch Mike meets June Mathews, owner of the ranch, and he falls in love with her. When Wally and June are out riding, they are ambushed by Wesson, and Wally is wounded. One of Wesson's confederates later exposes Wesson's perfidy, and Wally brings the homicidal foreman to justice. Wally then weds June.
Wonder dog and horse belong to Pattie, the "wild girl" of the title, who rejects a proposal from uncouth mountaineer Lige Blew in favor of romancing handsome photographer Billy Woodruff. Taking umbrage to the girl's decision, Lige frames Pattie's granddad for murder.