Blue Montana Skies

Blue Montana Skies is a 1939 American Western film directed by B. Reeves Eason and starring Gene Autry, Smiley Burnette, and June Storey. Based on a story by Norman S. Hall and Paul Franklin, the film is about a singing cowboy who goes up against a gang of fur smugglers operating near the Canadian border.

After discovering the body of their murdered friend and his final cryptic clue, Gene and Frog ride to the nearby HH ranch, which is owned by Dorothy Hamilton June Storey and her partner, Hendricks Harry Woods. Unknown to Dorothy, Hendricks is the head of the fur smuggling ring. Suspicious of Hendricks, Gene and Frog stampede their cattle into the HH herd as an excuse to spend time at the ranch and investigate. Soon they discover that the furs are being smuggled into a storehouse on the ranch and then shipped out of the country. While preparing to escort another shipment of pelts, the smugglers discover Gene and Frog in the storeroom and, deciding to use Gene as a cover for their illegal activities, hijack him and his wagon.After the smugglers leave, Frog escapes from the storeroom and organizes a rescue party to search for Gene and his captors. As the smugglers hold up another warehouse of furs, Gene escapes and tries to prevent the robbery, but is shot in the arm. He manages to sound the alarm and then follows after the smugglers by dogsled. After catching up to the thieves, Gene sees them loading the furs into Hendricks car. Gene causes a daring avalanche that traps the smugglers and exacts justice for the murder of his friend. ........

Source: Wikipedia