Torn from their cloistered world, pursued by troops, Rais and Kanda battle the elements of an unknown world and struggle to develop their emerging magic powers. Their mother is to be executed at the next full moon by the evil ruler who invaded their world. Only they can save her, take back the land, and free the imprisoned King and their father.
With a guide and 2 teens, they travel through a tunnel in the Mountain of Dread, battling the life-threatening elements, to find the only man who can help them. But the unknown danger comes from one they trusted.