At four years old, Anna's horse, Prince, is finally old enough to ride, though still untrained. With help from her father and Sean, a boy from- a neighboring farm, Anna gradually accustoms Prince to the bit, the bridle, the saddle, and the weight and presence of a rider on his back .Before long, in spite of a few bucks and a fall, the child and her friend Sean are galloping along the beach together and anticipating future adventures