A cowboy comes to the aid of a lady rancher threatened by Mexican bandits who believe there is a treasure buried on her land.

Johnny Mack Brown stars as medical student and football star who was expelled after a night club brawl over a woman. He meets her again only to find out she owns the club and is involved with a gambler...

While the original title, "Trailing the Killer" isn't a misnomer, it was a bit misleading since the "trailer" is a dog named Caesar (Caesar the Dog) and the killer is a mountain lion. But the makers also pointed out that Caesar "is the most intelligent dog actor since Rin-Tin-Tin" which probably lured a few Rin-Tin-Tin fans with a show-me attitude. Caesar prowls around the woods of the Northwest, dispatches a rattlesnake, visits his she-wolf mate and their pups, pauses to watch the dainty habits of a raccoon personally washing every morsel of food before eating it---and that raccoon had enough food to use up several minutes of running time---and then saves sheepherder Pierre (Francis McDonald)) from getting eaten by one mean mountain lion. Rin-Tin-Tin he ain't, but then who was?

Newcomer Monte Hale is tying to just get a job in western films when he meet young Danny McCoy and his sister Gloria. Danny is trying to get his horse, "Pardner" into films. Monte sings a song and "Pardner" does some tricks and a casting director notices. Monte gets a singing-cowboy role and the horse gets a bit, but there is an accidental explosion, engineered by western star Rod Mason, who is jealous of Monte, and the horse is badly scared and blows his lines.

Outlaws of Sonora is a 1938 American Western "Three Mesquiteers" B-movie directed by George Sherman.

Buffalo Bill Cody battles a gang of outlaws secretly headed by an unscrupulous lawyer.

Just after the Civil War a Texan and his men are fighting a ruthless Commissioner and his excessive taxes. After a Lieutenant is falsely accused of a pay wagon massacre by the Commissioner's men, he deserts the Army and tries to clear himself. At first he belives the Texan was behind the massacre but then learns it was the Commissioner and joins the Texan in his fight.

An aristocratic but destitute southern family attempts to swindle an insurance company by faking the theft of a valuable emerald necklace. The company assigns operatives Eve Rogers and Mike Regan to the case.

Texas Ranger Sunset Carson is given the mission of tracking down the notorious Marshall gang. Uncovering their hideout, he discovers the gang is led by Ann Marshall and is comprised of three of her ranch-hands, Dakota, PeeWee and Buckskin. He soon learns that they are the innocent victims of a ring of swindlers and cattle rustlers led by the ruthless Matt Conroy.

California Gold Rush is set in 1849. Ryder heads to Sutter's Mill, where he must contend with claim-jumping and treachery.

The sheriff camps outside of town and tries to arrest Froggy and Sunset, but a gang of outlaws helps them get away.

Bill Elliot is back as Red Ryder in Cheyenne Wildcat. Also back are Ryder's perennial cohorts Little Beaver (Bobby Blake, later Robert Blake of Baretta fame) and the Duchess (Alice Fleming). When not pummeling the bad guys, Ryder is the reluctant apex of a love triangle.

Gold stages are being held up in the far west at a time when the U.S. government needs bullion, just before the famed "Black Friday" attempt to corner the gold market.

The Army sends Tex Masters to find out who is supplying Indians with military guns.

Cowhand Ken Clark is stranded in Chicago, and temporarily takes a job as a sharp-shooter entertainer in a night club, with the intention of getting enough money together to get back to his beloved Arizona. Frank Gordon, while drunk, is about to be rolled by the club bouncer, but Ken interferes and earns Clark's gratitude. Gordon gets a telegram from Kay Burke, the daughter of his partner in Arizona, notifying him that her father, Jim Burke, has been killed by rustlers.The ranch has a U.S. Army contract to furnish horses, but she sees little hope of being able to make good because the stock is being rustled, and she asks Gordon for his help.

Inspector Dawson promises "Morton of the Mounted" a long-awaited vacation as soon as he solves the mystery of who killed an old fur trapper called Old Parker and a Mountie named McGee. Morton and his Mountie sidekick, Corporal Tiny Anderson, hit the tundra and Morton saves Mildred Boyd from a tormentor.

A railroad employee finds out the identity of "The Wrecker", a criminal who is deliberately causing trains to crash. However, before he can disclose the crook's name, he is shot and killed. A passenger aboard the train volunteers to go after the killer and bring "The Wrecker" to justice.

The wealthy owner of an iron foundry dies, and his greedy heirs are outraged when they find out that he left his entire estate not to them but to the foreman of his foundry.

Three cowboys try to stop a crook from defrauding an orphan girl out of her money.

A cowboy and his Mexican-Irish sidekick lead a wagon train to an unfriendly place.