Davy fears that if his visiting grandfather finds out he isn't a success, he will rip Davy away from his best friends and take him back to England.

There's a horse in the house when Davy takes in a young boy's horse. Chaos with the landlord and a veterinarian breaks out! The boys must figure out a way to make sure the little boy is able to keep his horse, and it includes farm work and Davy acting as a jockey.