Based on Finnish mythology, this film follows the exploits of Lemminkainen as he pursues Annikki and battles the evil witch Louhi. Louhi kidnaps Annikki in order to force her father to build a Sampo, a magical device that creates salt, grain, and gold. When Lemminkainen attempts to retrieve the Sampo, Louhi steals the sun, plunging the world into eternal darkness.