Please answer the following question: Build a movie plot around this: Who is Billy's ambusher? Rio McDonald
Answer:
Sheriff Pat Garrett (Thomas Mitchell) welcomes his old friend Doc Holliday (Walter Huston) to Lincoln, New Mexico. Doc is looking for his stolen horse and finds it in the possession of Billy the Kid (Jack Buetel). Despite this, the two gunfighters take a liking to each other, much to Pat's disgust. This does not prevent Doc from trying to steal the horse back late that night, but Billy is waiting for him outside the barn.After that, Billy decides to sleep in the barn, and is shot at. He overpowers his ambusher, who turns out to be curvaceous young Rio McDonald (Jane Russell), out to avenge her dead brother.The next day, a stranger offers to shoot Pat in the back while Billy distracts the lawman. However, he is only setting the Kid up. Billy, suspicious as always, guns him down just before being shot himself. There are no witnesses, and Pat tries to arrest Billy. Pat does not understand when Doc sides with the Kid. As the pair start to leave, Pat shoots Billy, forcing Doc to shoot the gun out of his hand and kill two of Pat's men.Doc flees with Billy to the home of Rio and her aunt, Guadalupe (Mimi Aguglia). With a posse after them, Doc rides away. Instead of killing the unconscious Kid, Rio instead nurses him back to health, a process that takes a month. By the time Doc returns, Rio has fallen in love with her patient. Doc is furious that Billy has stolen his girlfriend. After Doc's anger subsides a bit, the Kid gives him a choice: the horse or Rio. To Billy's annoyance, Doc picks the horse. Angered that both men value the animal more than her, Rio fills their canteens with sand. The two ride off without noticing.On the trail, they find themselves being pursued by Pat and a posse. The pair surmise that Rio tipped the sheriff off. Doc kills a few men from long range, but leaves Pat unharmed.When Doc wakes up one morning, he finds Billy gone and Pat waiting to handcuff him and take him back. Stopping at Rio's, the two men find that Billy has left Rio tied up in sight of water out of revenge. Suspecting...