When the King and Queen are poisoned, brothers Per and Pål are arrested as suspects. Younger brother Espen "The Ash Lad" and Princess Kristin set out on a quest to find the mythical Soria Moria castle, said to be built of pure gold and contain the Water of Life, which can cure Kristin's parents. If they fail, it will spell the end for the brothers, the kingdom, and perhaps the entire world.