As the children wrestle with finding their place in the group, this week sees just how important language skills and assertiveness can be at four years old.
A documentary that follows 10 four-year-olds as they meet at nursery. It explores how children make and break friendships, share, stand up for themselves, and find their place in a social group.
An intimate and fascinating window into the tears, tantrums and triumphs that unfold when children of 4 years old meet each other for the very first time.