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?
Ardal O'Hanlon
Steve Coogan
Jane Horrocks
Paul Whitehouse
Harry Enfield
Jeff Goldblum
David Attenborough
Ricky Gervais
Rob Brydon
Jeremy Dyson
Sean Hughes
Natalie Imbruglia
Mark Gatiss
Steve Pemberton
Reece Shearsmith
Alistair McGowan