In 1947, with five loyal friends in tow, explorer Thor Heyerdahl sails a fragile balsa wood raft along an ancient path some 4,300 miles across the Pacific.
Espen "Ash Lad", a poor farmer's son, embarks on a dangerous quest with his brothers to save the princess from a vile troll known as the Mountain King - in order to collect a reward and save his family's farm from ruin.