One night, Neville Brisket wakes up from a strange dream -a dream that there was a horrible, stumpy finger stuck up his nose. Then he finds his room in a mess, and his dog in the laundry basket. Neville goes to investigate - but his investigations end when he is whooshed down the toilet to the land of Under, by mistake! In a case of mistaken troll-dentity, Neville finds himself part of a disgusting new family. Will anybody help Neville get back to...