Dorothy has decided to return to Oz with Toto using the ruby slippers that showed up on her doorstep. Upon arriving where she reunites with the Scarecrow, Tin Man and Cowardly Lion, she learns from Glinda the Good Witch that the Wicked Witch of the West has been resurrected by evil winged monkeys and that the Emerald City has been taken over by her. The Wizard is in his hot air balloon, which is under a spell that causes it to be constantly blown around by an evil wind. Dorothy, Toto, Scarecrow, Tin Man, and Cowardly Lion set out to rescue him and defeat the Wicked Witch once and for all. Author Jeff Lenburg mentioned an aspect of the series wherein Dorothy has to learn to believe in oneself.