Lambert has the stagecoach wrecked killing the Commissioner so his phony replacement can alter Coonskin's land survey. When Red Ryder exposes the survey hoax, Lambert has his stooge Sheriff put Red in jail.
Roy Rogers, a Nevada State Ranger Captain in charge of the Rangers Reclamation Service, makes a trip to Las Vegas for the annual Heldorado Frontier Days Festival, as he wants to help his old friend Gabby Whittaker who originated the idea (at least, in this film).In Las Vegas, Roy meets heiress Carol Randall, who has been selected as the Queen of the Heldorado. Roy is informed that the F.B.I. wants an immediate investigation of the counterfeit thousand dollar bills that are being passed over the gambling tables at the casino.
In Old California, a young Frenchman transporting a chest full of silver travels by stagecoach to San Marino, to complete a complex business deal. The stagecoach is ambushed by a band of men whose leader, a mysterious bandido known as Cisco (Gilbert Roland), claims the silver is money that was extorted over a period of years from the poor people of California. The bandits take the money and escape, but Cisco stays behind with the Frenchman -- who, it turns out, is actually a lovely mademoiselle, Jeanne DuBois (Ramsay Ames). She follows him to the bandit's lair, where Cisco tells her he intends to return the stolen money to the poor people. The two rivals are irresistibly drawn to each other, however, and as a token of love Cisco offers to return the money to Jeanne instead. Now she must decide whether to complete her business deal, or to comply with Cisco's wishes and redistribute the wealth.
In this Roy Rogers entry, featuring a song written by Oklahoma Governor Roy J. Turner (making him and Lousiania's Jimmie Davis and Texas' W.E. "Pappy" O'Daniel possibly the only state governors to write songs used in a western), Flying U ranch owner Sam Talbot is killed by a fall from a horse. St. Louis reporter Connie Edwards comes to check a rumor that he might have been murdered. She goes to Roy Rogers, editor of the local newspaper, and he takes her to the reading of Talbot's will. The ranch is left to Talbot's 12-year-old ward, Duke Lowery, much to the dismay of Talbot's niece, Jan Holloway. After some attempts on Duke's life, Roy finally proves that Jan, Steve McClory and coroner Jim Judnick had Talbot killed and are conspiring to do the same for Duke, making Jan the last heir.
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.
Rodeo star Roy Rogers returns home to find that his old friend Tom Craig has been murdered after he was accused of stealing a family crest from Helen Williams. Helen joins up with Roy and Gabby Whittaker to find the killers and the crest.
The big bad cats are the villains/Indians, and the little mice are the settlers going west in their little covered wagons, and the Indians are on a rampage about it. Things look dark indeed for the settlers when the likes of Buffalo Bill, General Custer and Daniel Boone are unable to defeat the attacking cats but...wait...up in the sky...here comes the singing, flying mouse...Mighty Mouse. Not recommended for Revisionists.
A dance hall girl is murdered and her body robbed of a quantity of gold obtained illegally. The killer flees into Death Valley and encounters the rightful owner of the gold and her sweetheart.
Gabby doesn't want to breed his horse the Golden Sovereign with Roy's. When Sovereign and Roy's horse escape, the Sovereign gets shot accidentally by Skoville but Roy is blamed and jailed. A year later Roy returns with Trigger, the son of the Sovereign. When Skoville reveals he was present when the horse was shot, Roy sees an opportunity to clear his name.
A young outlaw gets involved with a gang of crooks. When he tells them he is breaking away, they threaten to pin a false murder charge on him. But he is rescued and reformed by his sister, and an undercover agent for the express company.
The Cisco Kid (Gilbert Roland) hears of a land-swindling scheme devised by the police Commandante (Martin Garralaga) and the tax collector (Harry Woods) in a small western town. Cisco's efforts against the plot cause the thieves to fall out, and Cisco is able to return the land to the rightful owners.
The Cisco Kid (Gilbert Roland) sets out on a double mission of rescuing a girl from forsaking her true love by marrying a supposedly wealthy suitor to save the old family hacienda, and he is also after the outlaws that robbed a stage carrying gold for the Mission. His task is made easier once he learns that the "wealthy" suitor (Tristram Coffin) is also the man behind the gold robbers.
Roy Rogers rides to the rescue when a bank robber's orphaned son (Tommy Cook), who is living at a ranch for homeless boys run by Gabby Whittaker (George "Gabby" Hayes), attracts the attention his father's rowdy gang, who want to claim the boy's inheritance for themselves
On a train trip out west to become a mail-order bride, Susan Bradley meets a cheery crew of young women traveling out to open a "Harvey House" restaurant at a remote whistle-stop.
Marshall Dan Mitchell, who is the law in Abilene, has the job of keeping peace between two groups. For a long time, the town had been divided, with the cattlemen and cowboys having one end of town to themselves, while townspeople occupied the other end. Mitchell liked it this way, it made things easier for him, and kept problems from arising between the two factions. However…
Mountie Matt O'Brien is assigned to escort Miss Owens to a remote outpost. But when he finds an illegal mining operation there that is smuggling gold across the border, his superior Sgt. Means orders him to leave.
The Kid (Duncan Renaldo) masquerades as a government inspector in this pleasant, and pleasantly tuneful, Cisco Kid series entry. Learning that his old friends have been killed and Manuel Gonzales (Tito Renaldo) wrongly accused of cattle rustling by corrupt district officer Miguel Sanchez (George J. Lewis), the Kid assumes the identity of the murdered government official.
Heading west for his health, Colonel Lambeth takes his daughter Rill along. Lost on the desert they are saved by Pecos and Chito. The Colonel hires the two and the Lambeths soon find themselves mixed up in Pecos' trouble. Pecos has killed Sawtelle's brother and Sawtelle as head of the vigilantes is after him.
Sue Farnum inherits a circus, but her dead father's partner is trying to take it away from her. Roy and Bob Nolan are filming a movie on location at the circus. They and a number of other western movie stars come to Sue's aid, putting on a show and catching the bad guys.