The adventures of a kind-hearted doctor, who is fond of animals and understands their language, as he travels to Africa with some of his favorite pets to cure the monkeys of a terrible sickness.

A young citizen of Oz who learns an important magic word falls prey to the wickedness of the Nomes' ex-king who wants to destroy Dorothy, the Wizard, and Princess Ozma.

When Johnny and Janey take off in their flying machine, Gran'ma and Gran'pa follow them to the "Land Back of the Moon," a place of magic and fantasy.