The Life and Legend of Wyatt Earp (1955)

S1E14 Trail's End for a Cowboy

The reckless son of a rancher, facing the necessity of selling his cattle for a pittance, attempts to recover his losses by gambling while intoxicated but ends up losing even more. Earp declines to intervene, citing that no laws were violated, prompting the young man to take matters into his own hands.