Small-time magician Oscar Diggs is stuck in an uneventful life. He is unappreciated but dreams about a life of grandeur. All this changes when he's hurled from rural Kansas into the enchanting land of Oz. The inhabitants of Oz see Oscar as a powerful wizard and the shower him with the fame and fortune he had always imagined. That is, until three very powerful witches — Theodora, Evanora, and Glinda — start to question Oscar's abilities. Drawn into an increasingly dangerous world, Oscar must quickly figure out who is good and who is evil to combat the wicked forces at large. Will Oscar be able to transform himself into a truly great and powerful wizard before it's too late?