A mysterious outlaw known as the Sidewinder, phantom leader of renegade Ute Indians, terrorizes the people of the Arizona Territory in the 1870s. When rancher Tex McCloud has his place burned out, he vows to find and kill the Sidewinder.

The Texas Rangers send Dave and Chito into the badlands to see if they can locate a counterfeiting operation. They arrive posing as wanted outlaws and this gets them into the gang. But as soon as they uncover the operation and locate the printing press, one of Chito's girl friends arrives to expose their identity and they find themselves trapped by the entire gang.

The fastest gun in the West tries to escape his reputation.

Hoping to increase its box-office allure by adopting the title of a popular song, Deep in the Heart of Texas (clap!clap!clap!clap!) was the first Johnny Mack Brown western of the 1942-43 season. The plot concerns a group of insurrectionists who intend to keep Texas separate from the rest of the USA.

Working undercover, Allen and sidekick Mendoza are out to stop the mail train robberies. Rivers and his gang are the culprits and by joining up with them, they hope to get the evidence they need.

Falsely accused of murder, Billy is able to escape thanks to his pals. Once in Santa Fe, he meets once again the man who lied during the trial.

The mayor has sent for a gunslinger who, though appearing to clean up the town, is really to be the mayor's means of taking the town over. When Roy and Gabby arrive in Tombstone, Roy is mistaken for the gunslinger. Just as Roy is ready to expose the mayor, the real gunslinger shows up.

A town bedeviled with outlaws sends for Hoppy, Lucky and California after their own vigilante committee fails to solve the towns problems. Hoppy discovers that the bad guys are led by the town boss, and so are the vigilantes.

Railroad agents frame a landowner who wont sell out to them.

Roy is a newspaper reporter. He goes to Cheyenne to cover the activities of supposed bad guy Arapahoe Brown. Roy, of course, discovers who the real bad guy is.

When Edward Creighton leads the construction of the Western Union to unite East with West, he hires a Western reformed outlaw and a tenderfoot Eastern surveyor.

The Fargo Kid is mistaken for a killer and is hired to kill another man...

Storm is out to wreck Ace's stage line. When Tex arrives to help Ace, Storm brings in hired killer Mule Bates. But Tex and Bates know each other and the two devise a plan to fool Storm.

The story opens as Stony returns to his home town, only to discover that his sheriff father has been murdered by person or persons unknown. The new sheriff (Henry Brandon) resents the arrival of the Mesquiteers, going so far as to frame Tucson on a murder charge.

Brad Henderson arrives in Star City just in time to witness three men rob a bank of $30,000 and kill a teller. Charged for the crime and jailed, Brad realizes he must escape and track down the real killers since the only one who can prove his innocence is his friend, Sheriff Bill Gregory, who has been shot and will not soon regain consciousness. Chasing down the robbers one by one, he eventually discovers the identity of the gang's ringleader.

To investigate a gold-shipping scam, a postal inspector goes undercover and tries to infiltrate the gang he believes is responsible.

Hoppy is busy chasing stagecoach bandits who sing as they rob.

Cisco and Gordito arrive to find there is an outlaw operating in the area who is assumed to be the Cisco Kid. When a reward is offered for his capture and a large shipment of money goes out, Cisco is on hand. Seeing the gang rob the stage he goes after them only to be wounded. The gang leader leaves Cisco's handkerchief at the scene and now he is wanted for the murder he tried to break up.

Wild Bill Saunders recruits a team of paroled convicts to subdue a lawless gang.

Residents of a small frontier town take up arms when vigilantes try to block a railroad right-of-way.

A retired lawman gets back into action to fight political corruption.

A cowboy is arrested for rustling cattle. A lynch mob is formed by his buddy to try and arrange an escape in the confusion. Things go wrong.

The wall to Surprise Valley has broken, and Jane Withersteen is forced to choose between Lassiter's life and Fay Larkin's marriage to a Mormon.

Lassiter's sister was killed and her young daughter taken and raised by outlaws. Years later Lassiter arrives at the Withersteen ranch looking for the now grown daughter. He immediately gets caught up in the ranch's struggle against rustlers. Trailing a rustled herd of horses leads him to the rustler's hideout and the missing daughter.

Captain Porter's scheme is to buy livestock and then have his men show up later to kill the buyer and retrieve the money. When his men kill the next victim, he frames the Arizonian for the murder. The Arizonian escapes the law and joins up with the outlaw Vasquez. Knowing Porter's scheme, he plans to trap him by using Vasquez as the next buyer.