A young Irish nurse, haunted by the death of her horse racer brother, moves to America with her uncle and falls in love with a top racer, who may be the ailing horse Seabiscuit's only chance at a comeback.

In the first program, a young English girl who wins an unruly horse in a raffle goes on to enter him in the Grand National Steeplechase. In the second program, a young girl and her horse go overseas. In the third program, a horse is passed through the hands of many masters prior to returning to his original young master and a happy retirement. The fourth program is a fictionalized account of an underdog bay colt who became one of the greatest thoroughbreds...