While searching for her mother, Dorothy Gale is swept up into the eye of a tornado and transported to a mystical world where an all-powerful ruler governs over one kingdom, has outlawed magic and faces not only the wrath of a growing cauldron of witches but a looming disaster brought on by a mythical force. While on her path to find her way home, Dorothy comes upon a wounded soldier with amnesia. Elsewhere, the Wizard sends Eammon on a mission to discover what fell from the sky and disturbed the Land of Oz.

After a close call, Dorothy and Lucas learn the Wizard has sent his guards to kill her. In Emerald City, the Wizard seeks advisement from his counsel as he begins to lose control and the witches begin to show their power. Meanwhile, Tip and Jack venture to the City of Ev to find a cure following a life-changing revelation.