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 to health over the next 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.