Eight-year-old Donna is unhappy about moving to a new house, leaving her old friends behind. On a lonely walk, she discovers a wishing well in a corner of her new garden and makes a wish for a friend to share her days with.

To her delight, a beautiful pony in the field by her fence offers company and comfort. But just as their friendship blooms, the pony one night disappears!

Will Donna find a way to bring him back?