Caillou's family is at a pool, but Caillou is scared of the big pool and wants to stay in the baby pool where Rosie is. Caillou's dad decides to teach Caillou how to swim. Caillou seems to be making progress, but he is scared again. His dad helps him realize that he can stand in the water, and Caillou's feeling confident again. Caillou is soon going to be an aweesome swimmer.