An obscure entry in the musical Western cycle, Swing, Cowboy, Swing was produced by and starred country & western bandleader Cal Shrum. Shrum and his band, the Rhythm Rangers, are warned away from playing a theater in Big Bend by Cal's brother, Walt Shrum and his Colorado Hillbillies. Ignoring the warning, the Rhythm Rangers arrive at the theater only to be shot at by a masked stranger. With the help of stranded vaudeville performer Max "Alibi" Terhune and his dummy Elmer, Cal manages to catch the mystery shooter who turns out to be Frank Lawson (Frank Ellis).
The film apparently did not generate enough interest for a series, but was re-released by Astor Pictures in 1949 under the title Bad Man From Big Bend.
"Only a fool sticks his neck out for somebody else. Don't get in the habit of it." Outlaw gunslinger Sam Garrett offers that sage wisdom to fellow fugitive Tom Cameron, who's on the run from the "Bluebellies," Texas State Police officers who wield a brutal iron fist of enforcement in the early 1870s. But quick-draw, hard-bitten Garrett soon decides not to take his own advice after young Cameron heads home to surrender - and instead gets framed for a revenge murder by a jealous rival for the affections of his girl.
Bill Harmon receives a letter from his partner, Dave MacRoy informing him of a rich gold strike in their California mine. Arriving there, Bill learns from elderly miner John Benton that Dave is dead and that he sold the mine at a strangely low price the night before his supposed accidental death. Harmon suspects murder.
After the 1848/49 War of Independence in the Transdanubian region. János Hegyesi, a late veteran of the War of Independence, is given the task by the chief bailiff Mérei to round up the gangs of outlaws who are rioting in Somogy County.
Virginia Redding inherits a fortune and goes to New York, leaving behind her suitor Dave, a rancher. Good fortune strikes Dave when radium deposits are discovered on his ranch, and he and his partner sell out, go to New York, and become society sensations.
A recluse bounty hunter rescues a journalist from being executed by an underground criminal organization, but only triggers a more daring threat. Now the two must escape the clutches of the crime ring by taking it down from the top.
After Slug Raton takes Brady's horse, hat, and gun, the Sheriff arrests Grady thinking he is the outlaw. Slug's men chase them to Ricard's ranch which they burn. After Grady saves the Ricard's from their burning house, Betty Lou saves Grady from hanging at the hands of the masked vigilantes. Grady recognizes the voice of Raton among the vigilantes and now knows who to go after.
Just as Nevada wins $7000 in yellowback bills, Ben Ide takes his $7000 and heads out to buy mining equipment. Burridge has his man Powell kill Ide and retrieve the money and Nevada finds Ide just as the posse arrives. Found with the money Nevada is arrested and Burridge now gets Powell to incite the local citizens to lynch Nevada.
US marshals Ken, Hoot and Bob stop a gang dressed as Indians from robbing the stage. After getting repairs at the relay station, but before they get to town, another trap is set, but they get away. In town, they search the stage and find nothing. But hidden in the axle grease can are diamonds. Polini wants them cut into smaller diamonds so that he can easily dispose of them. Throughout this Western, the courageous trio faces off against cunning opponents, including the gang's merciless leader (Ian Keith) and an unsuspecting banker (Karl Hackett).
After the 14th Ammendment to the US Constitution, everyone has rights - except the Native Americans. Cavalry Army General Boyd applies that by breaking past treaties with the Apaches, and suppressing them in the territory under his command. A young Apache - named Cuchillo/Knife, after the massacre of his tribe - is taught that he is the gods' send to protect his people. Brought up to be a great warrior, he will attempt to reason with Boyd, and then fight an uneven battle against the Blue Demons.
Frances Collier sets a love trap for landowner Don José O'Neil to help her father acquire his potentially oil-rich land, then falls genuinely in love with her victim.