On a winter day, Dad and Caillou go over to Grandpa’s with their skates. What was suppose to be a skating outing becomes a shoveling chore because of all the snow that has accumulated in Grandpa’s driveway. Soon, Caillou finds a way to turn this into a game and has a lot of fun making snow castles. When they are finally done and ready to go skating, the snowplow passes in front of Grandpa’s and leaves more snow to shovel. Still, Caillou is delighted: they can make plenty of new snow castles!