Rain, sleet, sun, and snow: Caillou is amazed by all the ways that weather changes. When a booming thunderstorm rolls in one night, Caillou and Gilbert are put in quite a state. Luckily, Daddy knows a little trick that helps Caillou track the storm. Caillou later learns that rainy days can be fun too when he and Mommy splash in puddles. And when a winter storm hits, Mom and Dad transform a scary blackout into a fun-filled indoor camping trip, complete with sleeping bags and marshmallows! The “leaking sky” also has Teddy and Rexy thinking. Gilbert explains the changing weather and how rain and snow help things grow.
In order: One, Two, Boom!, Caillou's Rainy Day, Light's Out!, Caillou Goes Shopping
