Caillou’s Grandma is surprised when Caillou tells her he doesn’t have any friends. She reminds him about Clementine, Leo, his cat Gilbert, and tells him that even his sister Rosie is his friend. Caillou soon realizes he has a lot of friends – including Grandma. But to have a good friend, you have to be a good friend. Caillou learns that forgiveness is also part of friendship when he accidentally breaks Clementine’s bucket. Later, Caillou must forgive his new friend Andre, when Andre accidentally breaks Caillou’s favorite chair. Rexy imitates Gilbert in an effort to show just how much he likes and respects Gilbert. He soon realizes being just like Gilbert isn’t easy. However, when they combine their talents, they both shine. In order: Three's a Crowd, A Friend in Need, Caillou's Friends, Caillou's Big Friend (thetvdb.com)