Dorothy awakens in Oz with Billina, a talking chicken. Following a damaged yellow brick road, they find the Emerald City in ruins and its citizens, including the Tin Man and Cowardly Lion, turned to stone. They are attacked by the Wheelers, people with wheels instead of hands and feet. Tik-Tok, a mechanical man, saves them and explains that the Scarecrow, the king of Oz, told him to await Dorothy's return. They travel to Princess Mombi's castle to find out where Scarecrow is. Once there, Mombi, with a collection of "wearable" heads, reveals that the Nome King, who is responsible for the devastation of Oz, holds Scarecrow at his mountain. She imprisons the group in a tower, intending to take Dorothy's head for her collection. They encounter Jack Pumpkinhead, who explains he was brought to life by Mombi's Powder of Life. Dorothy steals the powder to construct a flying creature from furniture and the head of the Gump, a moose-like animal, which flies them across the Deadly Desert to the Nome King's mountain, pursued by Mombi and the Wheelers.
