After our heroes have a rendezvous with Panhandle, they ride up onto a valley where they meet another fellow, Jeff Palin, who explains that his cattle are being rustled. He gives Tex a set of field glasses to view the rustling. From a distance, it appears that a woman is supervising the rustling when in fact it is Molly's ranch hand Henry Wilburn (Budd Buster) doing it. Our heroes run down Wilburn and they give him to Panhandle. Meanwhile, the sheriff arrests Molly and puts her in jail. Varno has a conference with his cronies and they pick cards to see who will "silence" Molly. Bucko gets the task but cannot do it so Varno takes it. Later that evening, Varno shoots into the jail cell that Molly occupies. Afterward, Varno learns from the sheriff that Tex and Jim are Texas Rangers and they have taken Molly into custody. Varno decides to set a trap for the Rangers and uses Panhandle to set it. When our heroes show up at a cabin in the old cottonwoods, Bucko is waiting for them. Tex and Jim go after the cattle while Panhandle rides off to protect Molly. Bucko catches our heroes at the cabin while Varno and his henchmen chase Panhandle after he exits Molly's ranch. Varno leaves the chore of disposing of the Rangers to Bucko. Up till now Bucko has been portrayed as a straightforward villain but he reveals his buffoonish nature when he is left alone with the Rangers to kill them.
Ostensibly, this low-budget, lightweight western is about defending the weak from the wolves. Just as the heroes have standards, so do the villains. When Varno asks his hired gunman Bucko Lynn (perennial western heavy Charles King) to "silence" Molly, Bucko balks. He has no qualms about killing guys, but he draws the line at the opposite sex. Elmer Clifton's screenplay is satisfactory up until Bucko is left with Tex, Jim, and Panhandle tied up and ready to die. The cretinous Bucko decides to strum a guitar while Jim warbles a lackluster version of "Old Paint." So engrosses is Bucko in the melody that he keeps his eyes shut while Panhandle and Tex work their way out of their bonds and jump him. Sadly, "Brand of the Devil" is available only as a scratchy public domain print. This lame sagebrusher is strictly a potboiler, though Wilkerson is pretty funny.