When an unconfident young woman is cursed with an old body by a spiteful witch, her only chance of breaking the spell lies with a self-indulgent yet insecure young wizard and his companions in his legged, walking castle.
Two 12-year-olds, who live on an island, fall in love with each other and elope into the wilderness. While people set out on a search mission, a violent storm approaching them catches their attention.