Gwen runs off into the Dreamfields of the Great Plains when she becomes bored with her date with Drake. There, she becomes caught in a battle of dreams with Lady Kale who is also trying to find the Crown Jewel. In a wild dream, Kale switches Gwen’s Sun Stone with her Dark Stone and thus a dream world is created in which Gwenevere has become evil, and her aunt has become good. Using the power of the Crown Jewel of the Dreamfields, the two must discover who they really are before it is too late, and Gwen must rely on her friends to help her fight the nightmares of the Dark Stone.