S4·E1 Where's Gilbert
Aired January 13, 2006
Synopsis
Gilbert has gone missing and Caillou is very concerned. A search of the neighbourhood and the local animal shelter turns up nothing. Caillou thinks about what it would be like to have other kinds of pets, but concludes that Gilbert is the perfect pet and he wants him back! Luckily when they return home Gilbert is waiting for them on the porch.