The evil witch Mombi and the self-styled girl General Ginger have seized power in the Emerald City of Oz. The Scarecrow, along with his friends, disenchants the daughter of the last legitimate ruler of the Emerald City, Ozma, and fights for justice. And in this they are helped by the girl Dolly from Kansas, the good fairy Glinda and the scientist Woggle bug.

A cyclone brings Dolly and her dog Toto from Kansas to Oz, where life does not obey the usual laws. Along her way she makes new friends: the Scarecrow straw, Tin Man and Cowardly Lion. Together they go to the Emerald City in search of the Wizard of Oz, who can help her return home.