The Wizard of Oz - the emerald

With their farm now in the hands of the bank, Dorothy, Uncle Henry and Aunt Em have decided to live in the Emerald City forevermore, and set out to explore the magical Land of Oz in the company of Dorothy’s most beloved friends. But when news of an evil invasion reaches their ears, they must rush back to Ozma’s side and face certain destruction together. Is this the end for our heroes?