Heart of the Rio Grande is a 1942 American Western film directed by William Morgan and starring Gene Autry, Smiley Burnette, Fay McKenzie, and Edith Fellows. Based on a story by Newlin B. Wildes, the film is about a singing cowboy and dude ranch foreman who helps a spoiled teenager and her business tycoon father discover what is most important in life. The film features the songs Let Me Ride Down in Rocky Canyon, Deep in the Heart of Texas, Dusk on the Painted Desert, and Rainbow In the Night performed by Edith Fellows.
Meanwhile, Smoke Rivers exforeman, Hap Callahan William Haade, is not pleased with the new foreman, Gene Autry Gene Autry, and how he turned the place into a dude ranch. Gene reminds him that ranch owner Skipper Forbes Sarah Padden hired him because Haps mismanagement drove the ranch into debt. When the train arrives at Smoke River carrying Alice and the girls, Connie bribes the porter to keep her luggage on the train. In the confusion, no one notices that Connie hasnt disembarked until the train pulls away. Gene races after the train on his horse, Champion, and brings the willful youngster back to the ranch.While Gene and his sidekick Frog Millhouse Smiley Burnette compete for Alices attention, Connie complains about being stuck on an unsophisticated ranch. Despite the best efforts of Alice, Connie quickly manages to turn everyone at the ranch against hereveryone except Gene. The next day, after Hap ignores Genes order to fix the brakes on the ranch truck, Connie steals the vehicle in another attempt to escape. When the brakes fail and Connies life is endangered, Gene rides to her rescue, but not before the truck crashes. Instead of being grateful, Connie is angry with Gene for preventing her escape. Looking to exact revenge, she uses lipstick to mark up her back so it looks like shes been whipped, takes photographs of her injuries, and then sends them off to her father. ........
Source: Wikipedia