While returning to the ranch with a stray, Jess spots a man being chased by three Shoshone braves. The man risks his own life to run them off by wounding one. Afterwards he returns the horse and rifle to them he took when a brave tried to scalp him. He then massages Jess's sprained knee which Jess had sprained during the gunfight. He introduces himself as Gandy Ross, a safe cracker trying to go straight, who's run into a bit of bad luck when he meets up with Jess Harper and Slim Sherman. Gandy starts working at the ranch but the Wellman gang wants Gandy's safe cracking services and will stop at nothing, including framing him for a stage robbery and murder, to get him to help them rob a bank in Granite City. Things get complicated when Jess ends up escorting Gandy back to Cheyenne with the sheriff and ends up inadvertently aiding him to escape. When the authorities in Cheyenne discover that Gandy Ross was not part of the stage hold up, Jess heads to Granite City and Gandy's girl friend...