Pentre Bach: Codi Pac

Everyone's off on holiday - everyone - apart from Dwmplen Malwoden, who feels very left out. Then, she's invited to join Pili and Palu who are about to go on holiday in their camper van. But the van is very small, so everyone is told to pack just one small case. Unfortunately, Dwmplen doesn't quite understand, and when Pili and Palu are about to put their cases in the back, they see that the van is already full of Dwmplen's things.