Peppa and George are going to the dentist for a check-up. Peppa and Georges's teeth are lovely and clean and Dr Elephant says their teeth are nice and white but notices that George's plastic toy "Mr Dinosaur's" teeth are a bit yellow and in need of a tooth-clean.

Suzy Sheep has come to play with Peppa, and has made up a pretend friend called 'Leo Lion'. Peppa cannot see Leo but Suzy announces that Leo likes roaring and he likes playing dressing up. Peppa decides that now she can see Leo. Even Mummy and Daddy Pig play along with the game. But Peppa's little brother George cannot see Leo and feels a bit left out.