S1, E1: Caillou and his friends are having a game of race cars in the park. Caillou is excited to let his red toy car speed around the track, but his little sister Rosie wants to join in and play with the big kids. Getting so excited, she almost ruins their carefully-made racetrack. Caillou is frustrated and turns to his dad for comfort. Dad asks if Caillou wants to hear a story about a race car driver named the Red Racer. Dad’s story takes us to imagination land, where Caillou (as the Red Racer) is easily winning the big race when suddenly, a huge foot appears in front of him. He looks up to see a Giant (Rosie) stomping across the race track! Even in imagination land, Caillou feels bullied by Rosie and does not know what to do. His Dad helps him understand that Rosie just wants to play with her big brother, just like Rosie the Giant just wants to join in on the fun. Caillou learns that bullies have feelings too, and with the help of a trusted adult and a little courage, he can take a stand against bullying behaviour. Back in the real world Rosie joins in the game as they set up the cars to race. One two three go!