Peterson has a plan to obtain all the ranches in the valley. He gives Carson a phony Spanish land grant and has him pose as the Mexican owner. When Fred and Fuzzy have their cattle stolen by Peterson's men, they quickly become involved in the scheme.
Kate Diamond owns the Roaring Falls Trading Post from where she directs her gang's gun-smuggling to the Indians. After she short-changes smuggler Stacey, his men attempt to steal the hidden guns, and attack her foreman Nebraska, but he is saved by Jimmy and "Cannonball" on their way to file a homestead claim at Canyon City. Jimmy renews a long acquaintance with Sheriff Harris and his daughter Jessica. The sheriff is wounded by half-breed Danny when he finds a rifle hidden in the latter's wagon, but Jimmy captures the outlaw, a go-between for Kate and the Indians.Wounded and in bed, Sheriff Harris ask Jimmy not to tell Jessica that she is only adopted and that Nebraska is really her father, although he believes her to be dead.
James Kincaid controls the local water supply and plans to do away with the other ranchers. Government agent Sandy Saunders arrives undercover to investigate Kincaid's land swindle scheme, and win the heart of one of his victims, Fay Denton.
Gene is the foreman at the ranch owned by wealthy rodeo owner Maureen. She will lose her rodeo contract unless sales improve.
Tex and his sidekicks arrive to help out his friend Jeffers, a railroad owner, only to find that he has been killed. They quickly run into trouble with an outlaw gang in their attempt to find the mysterious ghost train that supposedly runs on Jeffer's line.
On vacation at his ranch, western actor Roy quickly finds himself involved with a horse rustling operation and a boy ward of one of the rustlers, leading to the kidnapping of Roy's trick horse Trigger by the gang with a demand for ransom.
A singing cowboy roams the Wild West with his sidekick, dancing horse and fancy wardrobe.
Jimmy Wakely wishes to sell to the government a group of wild mustangs which he has captured and trained for rancher Matt Blake. The competition is Flora Carter, the owner of a near-by ranch. The army colonel in charge decides to buy the winning horses of a cross-country race. Flora has her henchmen, led by Sam Phelps resort to foul means in order to try to win the race.
In the midst of the Civil War, Lassiter has a plan to get control of California. Working out of St. Joseph, he plans to send forged messages to the troops on the west coast via Pony Express. First he attempts to bribe Pony Express ride Roy Rogers. When Roy refuses he turns to the outlaw Johnson and his gang and this leads to trouble.
Radio star Gene Autry returns to his home town of Gold Ridge at the request of his old friend Pop Harrison, who wants Gene to straighten out his wayward son, Tex Harrison, whose gambling and drinking threaten to bankrupt the rodeo organization which he heads. News photographer Clementine "Clem" Benson and reporter Hack Hackett are ordered to follow Gene. The group finds quarters at the "Bar Nothing" dude ranch, winter quarters for Tex's rodeo group, and Tex soon tangles with Hackett in a quarrel.
Hidden Valley has managed to retain its Old Western atmosphere, free of modern-day corruption, until escaped convict Smitty arrives with plans of taking over and opening the town up as a gambling resort. It's up to Rex Allen and his pals to put a stop to it and sing a few songs along the way.
It's cattlemen versus sheepmen and Trigger Gargan appears to be the leader of the gang causing the trouble. But unknown to Ranger Tex Lawrence, the respected town citizen Barrow is the boss and is tipping off the gang as to the Ranger's activities.
Ranch owner Sandra, fresh from animal husbandry school, brings a flock of sheep into cattle country. The local ranchers don't like it, and ranch foreman Gene must deal with it.
Gene and Frog set out to find out who has been causing the accidents at a dam construction site.
Americans come west to California in the hope of peaceful settlement. Roy and Gabby sing a duet: "We're Not Coming Out Tonight." Other songs include "Sundown on the Rangeland" and "Ride on Vaquero."
A singing cowboy and his sidekick encounter misunderstandings and rodeo havoc as they try and save a man and daughter from con men.
Cavanaugh and McCauley are after the ranchers land. When the Government announces the land will be put up for auction, the ranchers pool their money only to have it stolen by Cavanaugh's men. They then plan to sell their cattle but Cavanaugh announces a fake gold strike and the cowhands all leave. But Gene's hobo friend the Judge says he will get the cattle to market and he sends out a signal to his hobo friends.
Tom is a cowboy boot-wearing cat at a Texas dude ranch. When a beautiful female cat comes for a visit, Tom takes time from his regular torturing of Jerry to use the mouse as a way to impress the dame. Naturally, Jerry gives Tom his comeuppance.
Jimmy Wakely and his sidekick "Lasses" White run into trouble as they attempt to hire some cattle cars on the Cattleman's Railroad to take their herd to market. Rancher Joseph Colton has bought up all the cattle cars and intends to purchase the penniless line from principal stockholder Gywnn Randall. She is eager to sell to Colton but doesn't realize that he intends to force all the ranchers out of business once he has control of the line.
Working undercover, the Rangers are after Bull and his gang. Ted successfully joins Dr. Aikmans traveling medicine show, but Jim's identity has been exposed and he is in danger.