Princess Gwenevere and the Jewel Riders have defeated Lady Kale—or so they think! While discord among the girls continues to grow, a new threat approaches Avalon. Kale, who has taken over the body of her queen sister, has begun her plans to overtake Avalon, once and for all. Meanwhile, Drake struggles with his feelings of loss no longer being in the Wolf Pack and finds himself facing a new (but familar) enemy, alone in the Icy Wastes. The Jewel Riders must work together in order to rescue the queen, free Drake, and defeat Lady Kale once and for all. Avalon depends on it!