Iris Meredith

Billy the Kid has been wrongfully arrested for robbing a train. In order to prove his innocence, the Kid breaks out of jail and hits the trail to search for the real robbers. Along the way, he discovers that an outlaw band has been impersonating upstanding ranchers.

Jim Steele spots Pete Dawson taking horses over the Mexico-Texas border, but Dawson has an alibi. A new group of recruits arrives at the Ranger station, among them Tex Wyatt, the son of Ranger Captain John Wyatt, whom he hasn't seen for many years. Captain Wyatt tells Tex that he is in the Rangers strictly on his own merit and there will be no favors played. He assigns Tex to pick up Dawson's trail, but orders that no arrest be made without proof.

Dave Crockett (Bill Elliott) comes to the aid of ranchers living on the Yucca Strip, who want their area made part of the United States. A greedy land baron, however, wants the property as his own.

On the day of his daughter's wedding, a good-natured construction worker (Henry Armetta) is suspected by his wife of being involved with another woman, wrongly implicates his company's boss as a racketeer, and is arrested by police for running a shakedown operation. Comedy.

A bumbling senator investigating graft in Louisiana is the target of a scheme involving a Viennese beauty.

A reporter and a lawyer investigate a women's prison and help an inmate who does not belong there.

The struggle over the Bellamy estate ends with Michael Bellamy accused of murder and killed on the way to prison, while his brother Abel Bellamy takes control of the estate for his own nefarious plans.

When Matt Kilgore and his men frame and then hang an innocent man, Lige Saunders sends for his son Wild Bill Saunders who arrives to find his father shot by Matt's brother. When the brother is killed in his fight with Bill, Matt sends two fake Deputies to arrest Bill whom he then plans to hang. But Matt's sister, attracted to Bill, overhears the plan and rides for help.

Charley writes to girls all over the world in order to get foreign postage stamps for his collection--but winds up with a passel of girls who think he's their fiance.

After a handful of non-formula westerns, Charles Starrett returned to the mixture as before in Thundering Frontier. Starrett plays Jim Fillmore, kind to old ladies, small animals and heroine Norma Belknap (Iris Meredith). In contrast, the villains are kind to no one, least of all struggling building contractor Square Deal Scottie (Alex Callam), whose projects are continually targeted for demolition and his payroll is forever being stolen at gunpoint. A good 25 percent of the film's running time is given over to Bob Nolan and the Sons of the Pioneers, whose C&W croonings are pleasant but a bit much. One of the film's few surprises is that Starrett's perennial screen sparring partner Dick Curtis isn't one of the bad guys.