After being transported by a cyclone to the land of Oz, Dorothy and her dog are befriended by a scarecrow, a tin man, and a cowardly lion, who accompany her to the Emerald City to look for a wizard who can help Dorothy return home to Kansas.

An earthquake drops Dorothy and her friend Zeb into the Vegetable Kingdom, a land of glass buildings, princesses that grow, and invisible people, where they encounter the Wizard of Oz and together seek the Emerald City.

The wicked Nome King, who plots to conquer Oz and enslave its people, prepares to invade the Emerald City just as Dorothy, Aunt Em and Uncle Harry arrive there.

During a California earthquake Dorothy falls into the underground Land of the Mangaboos where she again meets the Wizard of Oz.

Dorothy's back, and she's not in Kansas anymore-- but she's not in Oz either! This time, Dorothy Gale winds up in the land of Ev, meeting new friends such as Tik-Tok the mechanical man; Billina, perhaps the cleverest chicken you'll ever encounter; and the new Queen of Oz, the lovely Ozma! But can even their combined might return our girl home? Then, on another unexpected trip, Dorothy and her cousin Zeb encounter the strange Mangaboos, invisible bears,...