Following his expulsion from Unseen University for his inability to master basic magic, Rincewind (David Jason, THE HOGFATHER) the wizard is compelled to become a Discworld tour guide to their first ever tourist. Twoflower (Sean Astin, THE LORD OF THE RINGS trilogy) is a rather innocent insurance salesman who Rincewind exposes to the dangers of Discworld's mythical creatures, the threat of fire in Ankh-Morpork, Death (the physical incarnation) and the possible end of the world.