Series 1, Episode 30 - The Dog Ate It Miss
Gnasher accidentally gulps down Dennis' permission slip for the school trip! There's only one thing for it - they need Prof von Screwtop to use his shrink ray to shrink them down to bite-size humans so they can travel on a sausage into Gnasher's tummy and find the slip! Easy! Well it would be if it wasn't for the tiny alien empress Miasma living in there.
- Thursday 24th May 2018
- 15 minutes
- Tuesday 15th October 2019 at 3:40pm on CBBC