The Rancho Grande, a Texas border ranch, cut off from the law by a gang of outlaws led by ranch foreman Bart Lane, who is holding the elderly owner of the ranch, Sarah Burton, a prisoner. Tex Lowery, an undercover Texas Ranger, rescues Martha Williams, a nurse sent for by the ailing Sarah, from a stagecoach holdup by Lane's henchmen. He later convinces Laner that he is a wanted outlaw named Ed Carter, and gains entry to Rancho Grande. But the real Ed Carter shows up.
Unfortunately the movie Riders of the Frontier is not yet available on HBO Max.
| Directing | Spencer Gordon Bennet | Director |
| Editing | Fred Bain | Editor |
| Writing | Joseph Levering | Screenplay |
| Camera | Marcel Le Picard | Director of Photography |
| Writing | Jesse Duffy | Screenplay |
| Production | Edward Finney | Producer |
