When a mysterious black goop reaches his idyllic undersea town, a brave and selfless parrot fish must cross the ocean to find its source and fix it before his coral reef is destroyed.

A century after the Wicked Witch, the Emerald City is at the mercy of a once-revered hero, and salvation comes from the wrench of young Victoria Wright. Rediscover old friends and meet new heroes in this new tale set in the Land of Oz.