


Sonora warns Marie to not kick him, but she ignores the warning and Lightning causes her to fall and dislocate her shoulder. Marie's regular horse becomes sick, therefore Al decides to use Lightning in the shows. She later surprises Doc by taming and riding Lightning, so he promises to train her as a diving girl if she can mount it while it's moving, which she succeeds after multiple attempts. Doc's son Al wins a wild horse in a card game and Sonora names him Lightning. Doc Carver, Marie's employer, tells her she is too young but gives Sonora a job as a stable hand due to her ability with horses, and she begins traveling with them. She ends up at a county fair and sees a performance by Marie, a diving girl who rides a horse off a platform, and aspires to do the same. Instead, Sonora slips out of the house during the night. She learns that because of her accidentally letting the cows loose and her suspension from school, her treasured horse Lightning has been sold and she will be placed in an orphanage. Sonora Webster lives with her sister and abusive aunt during the Great Depression.
