Number 10 in Monogram's series of 24 "Range Busters" westerns, Crash Corrigan, Dusty King and Alibi Terhune, the Range Busters,enlist in Teddy Roosevelt's Rough Riders during the Spanish-American War, but are mustered out and sent to Wyoming to clean up a cattle-rustling situation that is affecting the Army's meat supply. Arriving in North Butte, Crash's home town, they all get separate jobs. Jane Blanchard, a reporter from the Denver Daily, also arrives in town in search of a story, and is posing as a waitress. They learn that Jeff Miller is behind the huge combine of rustlers, but Miller also learns that they are the Range Busters and are on his trail. He and his henchmen engage the out-numbered Crash and Alibi in a fight, but Dusty stampedes a large herd of Miller's stolen cattle into the midst of the fray.
When his cattlemen abandon him for the gold fields, rancher Wil Andersen is forced to take on a coll...
Notorious shootist and womanizer Quirt Evans' horse collapses as he passes a Quaker family's home. Q...
Hammond is after the Craig ranch and has framed Charlie Craig for murder. Mother Craig brings in the...
Bolton's men blow up the wagon carrying the mine payroll and Marshal Crash Corrigan is supposedly ki...
A posse discovers a trio of men they suspect of murder and cow theft and are split between handing t...
In the midst of some friendly horseplay on their "Flying R" ranch, the Range Busters, Crash Corrigan...
The Range Busters have a plan to get into the outlaw's hideout in Fugitive Valley.
Hoppy, California and Johnny come to the ranch of a friend and his daughter, disguised as dude detec...
Hoppy goes to town to help Marshal Windy with some rustlers and winds up helping the widow Joyce whe...
Hoppy goes undercover as a gambler from the East when Bar 20 cattle are stolen by unknown rustlers. ...
An evil gang is involved in both cattle rustling and the robbing of stagecoaches. Hoppy must stop th...
Hoppy, Johnny and Windy are fighting a malicious gang trying to stop a cattle drive from reaching a ...
Kent wants the Allen ranch. So he has Steve and his men rustle their cattle using Pete as an informa...
Buck Peters arranges for Hoppy, California, Johnny and other cowboys to go to the aid of friends who...
When Matt Kilgore and his men frame and then hang an innocent man, Lige Saunders sends for his son W...
When a gang of outlaws led by Faro Wilson starts swiping payrolls and terrorizing the residents of a...
Deputy Sheriff John Steele recruits bandit Sonora Joe to help him find out who's been bumping off al...
Bob Tyler has rustler trouble while driving a herd of cattle to the new owner, but he refuses to tur...
A notorious outlaw is recruited by a cattle buyer, secret boss of a gang of cattle rustlers, to impe...
A cattle inspector runs a rustling ring on the side.