It is Christmas time and Caillou's family is getting ready to buy a Christmas tree. Caillou's Mommy tells Caillou to draw a picture of what he wants for Christmas to give to Santa. He draws a dinosaur. They go to the mall to see Santa. Caillou sees Santa and shows him the picture, he thinks Caillou wants a real dinosaur but Caillou explains it is a toy dinosaur. Santa then wants to see Rosie, but Rosie is crying that she's scared, so says he'll see her next year. Next, Caillou's family goes to get a tree, but the bad news is the Christmas tree person just sold his last tree to Clementine but he will have more tomorrow. At home, Gilbert has gotten into the lights for the tree. Caillou tells his Dad that he wants a Christmas tree today so they decorate a tree outside. They put the lights on it and Caillou thinks that it is the best tree ever. Caillou's Mom says that they will have a tree inside too. Caillou thinks he is the luckiest boy ever to have 2 Christmas trees and a dinosaur.