A young white fox called Dilah returns home to find his mother gravely injured. Before she dies, she tells him about a treasure with the power to make animals human.
The clues to its location are contained in a moonstone buried beneath their den - but wicked blue foxes seek the treasure too, and Dilah must race to find it first.
Along the way, he meets all sorts of other creatures: a friendly seal, an ancient tortoise and a fierce leopard - but can he stay one step ahead?