Every year the Chincoteague fire department rounds up the wild ponies of Assateague Island, and then auctions off the colts and yearlings to thin out the herd. A young brother and sister, Paul and Maureen Beebe, have set their hearts on owning one particular wild three-year-old pony, The Phantom. Only they have to earn the money, the Phantom has to be captured in the roundup (w...