Dilemma at Diablo

S3 E15: A young man returns to Diablo after attending medical school and his father, the manager of the local express office, spends lavishly to build and equip an office for the young man to begin serving Diablo as its much needed doctor. Unknown to his father, the son fell in with bad company while at school and flunked his medical examinations and, to make matters worse, owes a crooked gambler a large sum of money.