Class 3C is going on a field trip!

But when permissions slips get handed out to the students, Mrs Creecher drops Dennis’s right into Gnasher’s mouth and without that slip, there is no trip - meaning Dennis has to come up with a way to get it back.

Professor Screwtop, with the help of Pieface, is able to use his high-tech shrink ray to send the gang into Gnasher’s stomach in a specially designed sausage boat, to retrieve that slip!