Dorothy (Judy Garland) lives on a drab Kansas farm with her Auntie Em and Uncle Henry (Clara Blandick and Charlie Grapewin). A powerful storm sweeps her away to the Land of Oz. She accidentally kills a wicked witch. She wants to go home, but only the Wizard of Oz (Frank Morgan) can send her home. She must go to the Emerald City to see him. She sets off on the Yellow Brick Road wearing the witch's ruby slippers. She makes three friends on the road: a Scarecrow, a Tin Man, and a Cowardly Lion (Ray Bolger, Jack Haley, and Bert Lahr).