A wealthy man organises a mission to the Arctic Circle to search for explorers who vanished during an earlier expedition. However, the would-be rescuers make a different kind of discovery - a remote land inhabited by violent Viking settlers. Disney fantasy adventure, starring Donald Sinden, David Hartman, Jacques Marin and Mako.

A Victorian gentleman hopes to find his long-lost son, who vanished while searching for a mysterious Viking community in a volcanic valley somewhere in uncharted Arctic regions. The gentleman puts together an expedition team to go on the search, but when they reach their destination they must escape from some Viking descendants who will kill to keep their existence a secret.