Saucer-eyed silent-screen cowboy Jack Perrin and his magnificent horse, Starlight, star in this ramshackle early sound western. Perrin is falsely accused of a robbery actually committed by his onetime partner (fellow silent western star Edmund Cobb) and must flee South of the border to Mexico. Once there, he mobilizes a posse of expatriate cowboys and returns to bring the villain to justice. Penny-pinching poverty-row studio Big Four Corp. was able to hire several former westerns stars (Perrin, Cobb, Buffalo Bill, Jr., Pete Morrison, Franklyn Farnum), all of whom were out of work because of sound. Thus, Beyond the Rio Grande benefitted from a lineup that would have been unthinkable in previous years. ~ Hans J. Wollstein, Rovi