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.
Arriving at Medicine Bow, eastern schoolteacher Molly Woods meets two cowboys, irresponsible Steve and the "Virginian," who gets off on the wrong foot with her. To add to his troubles, the Virginian finds that his old pal Steve is mixed up with black-hatted Trampas and his rustlers...then finds himself at the head of a posse after said rustlers; and Molly hates the violent side of frontier life.
A ranch owner turns his place into a home for boys who have lost their fathers in World War II. His evil female lawyer covets the ranch and uses a gang of local toughs, a pack of killer dogs, and a phoney rancher's beneficiary to get it. U.S. Marshal Rogers opens an investigation when the rancher is killed.
To get the Delaney ranch Cole's henchman Anders has started a phony range war between the cattlemen and sheepmen. After killing Delaney, he tries to kill his daughter Jill and then Roy who was sent to investigate the war. But the failed attempts gives Roy the information he needs.
When a woman turns outlaw, she is suspected of murder.
Texas Rangers Tex Wyatt, Jim Steele and Panhandle Perkins are sent to the district of Rawhide to investigate the killings of several ranchers. Tex enters the town posing as a tramp while the other two Rangers join a troupe of itinerant minstrels.
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."
After Pat Garrett kills Billy the Kid, Billy's look-alike Roy Rogers arrives and is mistaken for him. Although a murderer, Billy was on the side of the homesteaders against the large ranchers. As Billy's death is unknown, Roy gets Garrett to let him pose as Billy to continue the fight, but without the killing.
Dare Rudd takes a shine to his cattleman cousin Tom's girlfriend who asks Tom to hire Dare to head the big cattle drive. Dare loses the money for the drive to cardsharps, but Tom wins it back, but Dare must save Tom's life.
Bob Blake and his sidekick and four singing cowboys arrive at the Jackson ranch where Bob learns from Betty Jackson that her brother, Joe, is missing. Bob investigates and learns that there is gold on the Jackson ranch, and the neighboring rancher has kidnapped Joe in order to get his land.
A cowboy is wrongfully accused of murder. He winds up in Harlem, where he assumes the identity of a preacher-turned-gangster who looks like him. He infiltrates the gang to catch the men who framed him.
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.
Driving a herd of cattle to market, Jimmy finds the trail has been fenced off by an old friend of his. While the two sides try to settle the matter peaceably, a man from each outfit get together to try and start a range war between them figuring they will end up with the cattle. When cattle are rustled, Jimmy finds the clue, horses with shoes that make tracks that look like cattle.
Tex has been sent to investigate the theft of government provisions along the border. Kildare is the leader of the outlaw gang and has his men posing as Indians. He has already killed the incoming Marshal and assumed his identity. When Tex asks too many questons, he plans to get rid of him also.
A sheriff tracking a gang of rustlers discovers that one of them is the brother of his fiance.
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.
Hughie Mack, a not so nice western singer, is discovered by Clover Doyle as the next movie cowboy hero. His name is changed to Slim Carter and a promotional buildup begins. Leo Gallaher, an orphan boy wins the contest to spend a month with Slim. Leo is a good influence on his cowboy hero. Clover sees the good and more in Slim. Montana Burriss is Slim's double.
The Kid and his pals are horse thieves wanted by the law. As he takes a horse from Jan Walton she makes him promise to bring it back.
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.
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.