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.
A sheriff and his posse set out to catch a murderer, but their mission proves more dangerous than anyone suspected after they become stranded in the desert and attacked by Apaches.
Jeff arrives in town to see the Sheriff only to find him just killed. The culprit is Clay Wheeler. When Jeff becomes friendly with Letty, Clay sends his man Ortega to kill him.
Three of the original five "young guns" — Billy the Kid, Jose Chavez y Chavez, and Doc Scurlock — return in Young Guns, Part 2, which is the story of Billy the Kid and his race to safety in Old Mexico while being trailed by a group of government agents led by Pat Garrett.
Frontier peacekeeper Sheriff Galt faces a crisis of conscience in The Iron Sheriff. In the aftermath of a robbery-murder, Galt follows the trail of evidence directly to his own son, Benjie.
Stony Brooke, Rusty Joslin and Rico, the Three Mesquiteers, are returning from Mexico and are stopped at the border by Army officials, who are attempting to apprehend smugglers who are buying cheap silver in Mexico and smuggling it into the States, where they can take advantage of a silver stabilizing measure and sell it at a high price.
Harris and Rigby own a circus. Rigby is a counterfeiter and frames his partner. The Mesquiteers learn Rigby is the culprit and get a confession from one of his men only to lose the case when the man is murdered in jail.
This short documentary, presented and directed by MGM sound engineer Douglas Shearer, goes behind the scenes to look at how the sound portion of a talking picture is created.
Stone is buying cattle cheap in Mexico, bringing them across the border without paying duty, changing the brands, and then selling them at a big profit.
Radio star Jack Benny, intending to stay in New York for the summer, is forced by the needling of rival Fred Allen to prove his boasts about roughing it on his (fictitious) Nevada ranch.