Janet Spencer is driving down a country road when one of her tires blows out. This seemingly innocuous, everyday occurrence leads Linda into a labyrinth of murder, blackmail and intrigue.

A mystery grows after a bank robbery car leads investigators to a carnival sideshow.

Sunset Carson, ace driver for the Harding Stagecoach Line, persuades his boss Frank Harding (Edmund Cobb) to hire his brother, Jeff (Bob Steele), recently released from the penitentiary. Sunset isn't aware that Jeff owes his release to Marc Redmond (Tristram Coffin), owner of the rival line, and that Redmond is forcing Jeff to give him advance information when the Harding stages are carrying valuable shipments, so that his henchmen can rob the stage and force Harding out of business.

A forger has made a copy of a Spanish land grant and Arnold is after it. Arnold and his men attack, shoot the forger, and take the deed while Russ tries unsuccessfully to stop them. Arnold presents it at the recorders office. It appears authentic and he starts evicting ranchers from their land. But Russ knows something is wrong as one of Arnold's men was a man he fought with during the attack.

Red Ryder convinces homesteaders to settle in Paradise Valley. Business men in nearby Central City want control of the valley and water supply and propose to build a dam for half interest in the land. They use Red to generate interest in the dam but when the dam is completed, they rig the stockholder's meeting so Central City will get the water.

In this western, a cowpoke gets in an argument; a scuffle ensues leaving the cowboy to believe that he killed his opponent. He is so wracked with guilt that he travels to the ranch of the dead man's sister, gives himself a new name and begins helping her. Rustlers come; he stops them. Trouble ensues after she learns his true identity. A scuffle ensues. She wings him with a gun; he disarms her. Later she hears the real murderer bragging about his crime during a fight with the hero.

Ernie Reardon, the superintendent, and Bill O'Hara, the foreman, of a construction company crew working on a bridge to a remote valley, are constantly quarreling over small and minor matter, especially when it comes to Peg Mallory, whom both men are romancing and Peg enjoys the attention. Thed work is suspended when a worker is killed, but a flood is approaching and the valley citizens are in dire straits unless the bridge is completed - in a hurry.

When the Alaska fishing season ends, a crooked cannery owner, who owes a huge delivery of salmon to a Seattle company, manipulates local Natives, who have unlimited fishing rights, into illegally selling their catch to him.

The ranch of Red Ryder (Allan Lane) and his aunt, The Duchess (Martha Wentworth), is being used as the training site for "Gentleman Jim" Corbett (George Turner) for his upcoming fight in Carson City, Nevada for the heavyweight championship against Bob Fitzsimmons (John Dehner). Molly McVey (Peggy Stewart), the daughter of a U.S. Senator, crusading against prize-fighting in Nevada, complicates matters soemwhat when she conceives the bright idea of having Corbett kidnapped, thus causing the cancellation of the fight. The two men (George Chesebro and George Lloyd) she hires to do the kidnapping also add to the complications by kidnapping Ryder instead of Corbett. Meanwhile, a gang of crooks, led by McKean (Roy Barcroft), descend on the town intent on looting the town and also making off with the fight proceeds.

Newlyweds experience marital problems when the wife's highly successful job as an attorney overshadows her husband's stagnant career.