Maverick, a young horse on the Half Diamond Ranch, has decided what he wants to be when he grows up. He tells his father that he wants to become a bucking horse. His father isn't thrilled at the idea, but he encourages Maverick to talk it over with a retired bucking horse, Blackjack. Maverick is nervous about speaking to the older, seasoned horse, but he works up the courage to talk to him. Blackjack cautions him that learning to be a bucking horse...