In this episode Dougie meets a little beaver who has lost his balloon and is feeling very sad. Dougie puts on a clown’s costume to try and cheer him up. But first he needs some lessons from a real expert – his dog Tim, who was a circus performer in his younger days. Tim shows Dougie how to slip on a banana skin, fall into a puddle, and throw custard pies. Will they be able to make the little beaver laugh?