Mommy can’t find Caillou’s toboggan for the playschool tobogganing trip and Caillou is certain he’ll miss out on all the fun. Miss Martin tells him that a cardboard box slides just as well as a toboggan on snow, so he decorates a box to look just like a bobsled. Once they get to the hill his bobsled box works just as well as all the other kids’ toboggans and he has a grand time after all.