An emergency at his Aunt's ranch gets Ed Randall leave from the Navy. He returns to find the water cut off and her note due the next day. When the man he seeks legal advice from is murdered, Ed is accused and he now finds himself in jail with a lynch mob forming outside.
Dan Hurley wants to sell wild horses and is trying to get the Wild Game Laws that protect them changed. To get his petition signed, his henchman paints his trained horse to look like the wild horse leader and has it kill a man. Johnny Revere finds traces of paint on a horse and tries to arrest Hurley and his men. But he is captured by the gang and is now slated to be the next victim of the trained horse.
Sam is a parolee who has paid for his dirty deeds. Now determined to go straight and help take care of his hot headed brother and devoted sister, he becomes set upon by both the law, represented by Federal Marshall Rocky Lane, and by his former outlaw buddies led by the notorious William Oakes.
Rocky Lane arrives at the town of Bear Creek to help insure the safe arrival of forty thousand dollars the citizens have raised to build a new hospital. After one of the town's doctors is killed in an ambush, Rocky devises a plan with the remaining doctor and sheriff to smoke out the bad guys.
A little girl living on an isolated ranch claims to have formed a bond of friendship with a pure white, "wild" stallion. The horse is well known in the area, almost legendary, and supposedly vicious. Is she just making it up, or is she telling the truth? If it's real, isn't it dangerous for her with a "killer" horse? Or is the horse as vicious as he's been portrayed?
Cattle detective, Rocky Lane, arrives in town to investigate cattle disappearances only to realize just three cows owned by eccentric inventor, Nugget Clark, are involved. However, the disappearances lead to a deeper mystery involving dynamite explosions, rampaging cowboys and a water shortage.
Bob Warner sells some cattle to two men who later drug him and rob him of the sale money. He takes a job with a medicine show as a barker, offering a reward to any spectator to last three rounds in fighting him. While in the ring, he notices in the audience the two men who stole his money. He knocks out his contestant, pursues the crooks, and recovers the money.
There is trouble on the Bar D ranch as cowhand Mile Ahead plans to rustle the herd. He starts a fire on the opposite side of the ranch to keep the hands busy and also kidnaps the new school teacher. Fighting the fire, Foreman Denver leans the cattle are gone and going after Mile Ahead, learns the teacher is a prisoner in the school and the fire that is now out of control is heading her way.
When his well-meaning sidekick (Smiley Burnette) buys a cow farm instead of a cattle ranch, singing cowpoke Gene Autry prepares to embrace the dairy business. But with a corrupt association bent on driving up milk prices, it's up to newly elected Sheriff Gene to clean up the mess. Country music icon Patsy Montana sings "I Want to Be a Cowboy's Sweetheart," while radio crooners the Texas Rangers perform alongside Autry.
An otherwise honest gambler, played by Jack Holt, begins to cheat at cards in order to put his son John Darrow through mining school in this lavish Zane Grey adaptation produced by Paramount. The callow foster-son pays back the noble gesture by running off with Holt's mistress, Olga Baclanova.
Tom Hardy (Tom Mix), a pony express rider, is carrying government gold in a coach to Wassatch accompanied by Alice Calhoun (Sharon Lynn) , the daughter of the US telegraph survey station. The gold is to pay for the US Telegraph Survey and it is to be delivered to the survey chief, Jim Calhoun (Thomas Lingham). The coach is attacked by bandits led by the Slade (Duke Lee) and Kane (Mark Hamilton).