Caillou (1998)

Season 1: Episode 54

Caillou is going to spend the night away from his home and family for the very first time. He goes to Leo's house and has a lot of fun in Leo's tree house, but at bedtime he's feeling lonely and homesick. Leo's mom suggests he should phone home. He feels much better when he speaks to his Mommy and even better when she reminds him he has his teddy bear with him.