A young boy and a veterinarian in a red convertible help thwart a gang of horse thieves. Director Fred F. Sears' 1954 outdoor drama stars Billy Gray, Phil Carey, Roy Roberts, Dorothy Patrick, Gordon Jones, Trevor Bardette and Morris Ankrum.
As foreman of a dude ranch, Gene has two problems. One is a guest, the spoiled daughter of a millioniare, and the other is the disgruntled ex-foreman that Gene replaced, now just a ranch hand. Gene eventually gets the daughter straightened out but has to fire the ex-foreman and this leads to trouble when he returns intent on revenge.
Ex-Pony Express rider Autry ties to protect his US mail franchise as the Pony Express gives way to stage coach mail and the telegraph. Gene's last film appearance as a singing cowboy.
While Sam Houston in in the nation's capital trying to get Texas into the Union, his aide is trying to impose a self-serving tax on the use of the Santa Fe trail. The lady owner of a wagon train is using the trail, and a Texas Ranger comes to her assistance.
Manzanita Springs ia a combination small airline and spa and Vance Brados wants it. He pays their mechanic to have the planes run out of fuel so his men can rob the gold shipments and kill the pilots. After Sheriff Roy Rogers catches the mechanic, Roy plans one more gold shipment to get proof and this time his men will be ready. But it looks like Roy's plan will fail when Brados suspects a trap and call off the raid.
Marvin Hayden returns to find his ranch is about to be sold at auction and the Hayden Jorth feud still going strong. Carson wants the Hayden ranch and tries to kill Hayden. When he fails he kills Chick Jorth with a rock. As Hayden does not carry a gun and the two had argued earlier, Hayden is arrested for the murder. With Hayden in jail, his friends Chito, Ginger, and his Lawyer Gardner now go to work to find the murderer.
A wounded archaeologist crawls into the camp of three kindhearted cowboys. When the cowboys bring him to a nearby trading post, he's murdered after he lets slip a secret about a hidden cave. Investigating his death, Ken and his friends encounter a land dispute between a pair of neighboring ranches, an arrogant German baron and a mysterious shack that houses a great secret.
Knowing the railroad is coming, Carter is after the rancher's land. Bob and Chito return just in time to save Banker Stockton and his money from Carter's men. When Stockton then lends the ranchers money, Carter has them burned out. Bob knows Carter is responsible and when Carter's henchman Saunders is recognized, Bob goes into action.
Young Englishman inherits ranch which he wants to sell, but Gene's gonna turn him into a real westerner instead. When new owner Spud arrives from England, Autry convinces him not to sell the ranch but to raise horses for the Army. When both Autry's and Neale's bids are the same, the Colonel calls for a race to decide the winner. But that night Neale has Autry's stable burned.
Buck Colins heads a group of local ranchers who are trying to prevent the railroad from completing its line through their property. Till now they have been able to charge tolls on herds passing through. Hoppy goes undercover to expose them.
Hoppy is leading a scientific expedition and the Chinese who have a hidden settlement nearby are trying to stop them. Saulters and his outlaw gang are also in the area looking for a gold mine. When Saulters men attack, the gold mine is found. Hoppy agrees to file for the Chinese and heads after Saulters in the chase to the land office.
Belle Langtry runs a town being taken over by cattle rustlers. She is also a front for the outlaws, who are led by Steve Fraser. Hoppy gets elected sheriff and cleans up the town with help from the Bar 20 boys.
Hoppy, Lucky and California search for a mine owned by Trudy Pendleton after it was taken from her by thw swindling gambler Ace Gibson. They find the mine and Hoppy fights Gibson over it.