Dora Mason, in boy's garb, has lost her last nugget playing the roulette wheel, and "Cheyenne" Harry, never guessing her to be a girl, notices that something is wrong. He tells her to wait outside the saloon and begins to play. Suddenly he shoots out the lights, grabs the stakes and banker's pile and dashes for the door. Failing to see the girl, he rushes to his horse and rides down the road. At dawn Harry is resting, for he has eluded his pursuers. Suddenly hearing a noise, he calls "Halt," but the figure continuing to run, he fires. Dora falls. Recognizing her scream as a woman's, he is horrified. He runs down to help her. She tries to be brave, but is frightened at the sight of her own blood. He places her on his horse and takes her to a deserted shack, where he binds her wound and attempts to soothe her. She tells him she was left alone when her father, a miner, died, and has dressed as a boy, for it was easier than being a girl in the desert. Realizing the seriousness of her injury, he rides to town, in spite of her efforts to stop him from taking such a risk. Entering the saloon, he forces the bartender to give him a bottle of whiskey, then grabs the man's apron and dashes back to the shack, aware that he is being followed by the cowboys. Instructing the girl to stick a pole with the apron tied to it out the window as soon as he has had time to escape, "Cheyenne" bids her good-by. The cowboys starting to fire the shack see the flag of truce and cautiously enter the building. They find the girl, who pretends to faint, and forget they are hunting a criminal and carry her back to the town. "Cheyenne" sees the men leaving with Dora and smiles at her cleverness.