Caillou participates in a boat race with a new sailboat from his Grandpa; Caillou experiences loud sounds; Caillou is the ring bearer at the wedding of Mommy and Daddys' friend Jonas. "Captain Caillou" - Caillou his eagerly waiting for his Grandpa --- today they're both going for a visit to the park. When Grandpa arrives, he's carrying a package and asks Caillou if he's ready for a special day at the park. Caillou wonders what's so special about it and figures it has something to do with the contents of the package. He's very curious as to what's in it, but it's a surprise --- not to be revealed until they get to the park. They take a bus to the park and Caillou tries to guess just what could be in the box. Grandpa gives him a hint --- it's something that they can play with at the park. Caillou imagines all sorts of possibilities. He asks if maybe it's a teddy bear, or even a real bear. He also imagines an airplane. Actually, it turns out to be a toy sailboat. Caillou likes the sailboat and imagines that he's a real boat captain. Just then, Caillou's friend from playschool, Emma, shows up. She and her Dad brought a toy sailboat too. They decide to have a race with another little boy who's at the park. Grandpa reminds Caillou that even if he doesn't win, the most important thing is to have fun. The race begins. At first things are pretty even, but Caillou feels like maybe he has a slight edge. He makes the boat go faster, but then it tips over. Even more upsetting --- Emma's boat tips over as well. The little boy wins the race. Caillou apologizes to Emma for what happened, but she's not too upset. It turns out that she's been going to the park and racing her boat for a long time and it always seems to tip over. They both congratulate the little boy for winning. Caillou decides he likes being Captain Caillou and wants to come back and race again. "The Loudest Noise" - Caillou is inside, playing with his toy firetruck. He's having a lot of fun with it, racing it (thetvdb.com)