Ormhildur, a young girl, goes on a mission with old Albert, Gudrun, a sneaky witch, and Brunhild, a brutish gang leader, across the dangerous highlands to cast a spell in the Cave of Evocation. On their way, the team awakens in a dark cave, only to find themselves in troll territory and accused of sheep theft by Raudur, a giant troll who threatens to turn them into sheep unless they pass his three challenges. With luck and wit, they outsmart Raudur, and his enchanted sheep, seizing the moment, push him off a cliff, returning to human form and leading the team to their village, just as Alfur arrives, cushioning the troll's fall.