S5·E33 Playhouse Play Date
Aired October 3, 2010
Synopsis
Caillou and Sarah work together to decorate Caillous new playhouse. They even plan a playhouse playdate for all of their friends! When the big day arrives - and Sarah has the chicken pox Caillou decides to go ahead with the party... but soon realizes it isnt the same without Sarah, especially since she contributed so much.