Indian scout Tom Jeffords is sent out to stem the war between the Whites and Apaches in the late 1870s. He learns that the Indians kill only to protect themselves, or out of retaliation for white atrocities.
Gene Autry becomes the new Sheriff after bank robbers kill the former sheriff. When Judge Beaumont is murdered, evidence points to the judge's wild son. Believing the young man, Gene tries to help.
Evil Grant Withers lets a killer horse loose to ruin valuable horses on nearby ranches. He hopes to shake down the ranchers for his "protection". Roy tracks down the bad guys, but is suddenly trapped by them. Peter Miles, a boy terrified of horses, overcomes his fear and rides for help to save the day.
Roy is a United States Marshal tracking down a counterfeiting ring and hunting down a mountain lion. Songs: "It's One Wonderful Day," "Rootin' Tootin' Cowboy," "Pancho's Rancho" and the title song.
Two young horse traders guide a Mormon wagon train to the San Juan Valley and encounter rugged terrain, the cutthroat Clegg gang, hospitable Navajo, and moral challenges on the journey.
Released from a navy hospital following WW II, Lon Evans learns that he faces eventual blindness and returns to his Wyoming ranch. He sees a beautiful white stallion named Starlight and his cowhands Lem and Yancy say he is a killer and cannot be trained. Lon disproves this by training the stallion to act as his guide in preparation for his future blindness.
Notorious stagecoach robber Rhiannon is unintentionally appointed as deputy when he saves the sheriff's life and must wear two hats between his new job that he enjoys and his old occupation that he misses.
A prospector discovers natural cement and suggests it should be used for a new dam. But this is the last thing the badmen of Trail End want, as they have a monopoly of the wagons needed to haul rocks to the site. A pretty sheriff notwithstanding, it's a job for a singing marshal.
Abilene gunmen are bent on terrorizing the town of Blue Valley and massacring its inhabitants. They have been hired by local druggist Henry Turner, who has discovered gold beneath the town and wishes complete possession.
Not quite as memorable as his previous Riders in the Sky, Gene Autry's Sons of New Mexico is still well up to the star's standard. This time, Gene tries to reform Randy Pryor, a would-be juvenile delinquent, played by Autry-protégé Dick Jones (who later starred in the Autry-produced TV series Range Rider and Buffalo Bill Jr). To this end, Pryor is enrolled at the New Mexico Military Institute, where much of this film was lensed. The kid chafes at the school's regimen and escapes, heading back to his criminal mentor Pat Feeney (Robert Armstrong).