Caillou spends his summer doing many new things ... On a really hot day, he and Rosie run through the sprinkler, then watch real kids run through the sprinkler and play in the pool.

2000 A 5th Season came out in 2013 = and it airs on PBS Kids. Caillou also airs on PBS Sprout.

Caillou and his friends Jason and Jeffrey make finger puppets at playschool and decide to put on a puppet show for the rest of the class the next day. In the park Caillou starts a new hobby ...