Singing cowboy Gene Autry (
Gene Autry) is the foreman of the Circle R Ranch, which has been in the Adams family for generations. The ranchers in the area have enjoyed free grazing rights on the Circle R for years. Recently, the madcap heiress of the ranch, beautiful Jo Adams (
Virginia Dale), negotiated the sale of the ranch in order to pay off some of her debts. She accepted a $25,000 down payment, with an option to purchase in 60 days, from unscrupulous cattle broker John Ramsey (
George Meeker) who is conspiring with Adams' business manager James Morgan (Harry Stubbs) to buy the ranch and cut off grazing rights to the ranchers. As the head of the cattlemen's association, Gene is accused of betraying the ranchers after they learn that the Circle R is being sold and that their grazing rights, bequeathed to them by Jo's late grandfather, will be taken away. Without access to the Circle R pasture lands, most of the ranches in the area will go bankrupt. Determined to persuade Jo to change her mind, Gene and his pals, Frog Millhouse (
Smiley Burnette), Cactus Mack (Cactus Mack), and Patsy (
Mary Lee), drive to Jo's palatial house in the city. The scatterbrained Jo mistakes them for the band hired to play at her birthday party that evening, and they perform in order to stay. After the party, Gene explains who they are and urges Jo to return to the ranch and run it the way her grandfather did. The frivolous heiress, however, has no intention of changing her extravagant lifestyle. With few options available to him, Gene abducts Jo and her butler, Dada (Gerald Oliver Smith), and takes them back to the Circle R Ranch, where Pop Sloan (Wade Boteler), a rancher who has known Jo all her life, has organized a welcoming party for her. Despite her appreciation, Jo tells Gene that she is broke and has to sell the ranch to pay her debts. Soon after, Gene approaches Judge Henry Starbottle (
Spencer Charters) and explains the impact the sale of the Circle R would have on the ranchers in the area. They conspire to have Jo declared legally incompetent in order to buy some time. At the hearing, Henry rules that she is to become a ward of the court, and Gene is placed in charge of the ranch until Jo can prove her competency. In order to raise enough money to repay Ramsey his down payment, Gene and the ranchers drive their cattle to market. When Ramsey learns of their intentions, he sends his henchmen to blow up a dam and flood the valley through which the cattle are passing.{{#tag:ref|The dam used in
The Singing Hill was a miniature built by the Lydecker brothers for Ralph Byrd's
Born to Be Wild (1938). It was later used in the serials
Dick Tracy Returns (1938) and
King of the Texas Rangers (1941). Meanwhile, Jo wins her competency hearing, regains control over the ranch, and quickly fires Gene and the other Circle R cowboys. As the men are packing to leave, Jo arrives to say goodbye to the men, but is distressed to see families who will be displaced because of her actions. She drives away, but is stopped on the road by Judge Henry, who tells her that she must say goodbye to Pop before she leaves. Jo is overcome with grief when the judge brings her to the old man's funeral; the old man did not survive his ordeal. Later, after Jo reveals that she told Ramsey about the cattle drive, Gene realizes that Ramsey was behind the dam explosion. When Jo tells him that she now intends to keep the ranch, Gene devises a plan, sending her to Ramsey's office where she tells him that Gene is holding Morgan in an attempt to get information from him. Worried that Morgan will implicate him in the dam explosion, Ramsey hires a group of gunmen to kill Gene. When the hired guns sneak onto the Circle R that night, they are beaten and captured by Gene and the ranch hands. Gene himself apprehends Ramsey after giving the corrupt cattle broker a beating. Afterwards, the ranchers are promised a good deal on their next herds, and Jo keeps Gene as her foreman. ==Cast==