Two rival dragons, the earth-based Groundshaker and the air-based Zephyrwing, must overcome their differences to save a dying desert. After a series of trials and personal sacrifices, they discover a fanatic group, the Cult of the Blight, is actively working to destroy the desert. Their final battle takes them to the Temple of Harmony, where they learn to combine their powers, but the Cult's leader unleashes a final artifact—the Orb of Despair—which drains the life from the Heart of the Sands. In a desperate final act, the dragons unite their ultimate attacks to shatter the Orb. Their harmony reawakens the Heart, and they channel its power to transform the barren wasteland into a vibrant, living paradise, fulfilling the prophecy as guardians, not rivals.