Joe is nervous about his first big party, and as Mum walks him along the darkening street to his friend's house, his imagination starts to run wild. They search for the right place, looking through the windows, wondering "What if...?" while making surprising discoveries along the way.

Joe is nervous about his first big party, and as Mum walks him along the darkening street to his friend's house, his imagination starts to run wild. They search for the right place, looking through the windows, wondering "What if...?" while making surprising discoveries along the way.