Based on Finnish mythology; Lemminkäinen woos the fair Annikki and battles the evil witch Louhi. Louhi kidnaps Annikki to compel her brother to build for her a Sampo, a magical device that creates salt, grain, and gold. When Lemminkäinen fails to recover the Sampo, Louhi steals the sun, plunging the world into frozen darkness.

American-dubbed, re-edited version of the 1959 Soviet-Finnish fantasy co-production Sampo. Produced by Roger Corman, it's shorter by almost 30 minutes, the names of crew members and characters are drastically changed and key plot scenes are removed.