Follow Robbie as he sets out to discover a mythical tribe of lost Viking warriors to help him save his friends from another dastardly plot by the evil Blitzen and his new-found partner-in-crime The White Rabbit. Robbie is having girl trouble too – Donner is feeling neglected and decides to give Robbie an ultimatum. Can Robbie save the day, keep his girl and unravel the mystery of the Legend of the Lost Tribe?