David's contemplating all the different jobs the adults on the estate do but Sam points out that David's left someone off the list. Of course, it's Grandma Zainab! But David doesn't think Grandma Zainab has a real job. However, when Zainab takes Sam and David on a mission to pick up the community centre keys, they find themselves accompanying Zainab on busy mission helping out all kinds of people on the estate.

It's clear that little Finn is worried about his dad's plans to perform at the community festival. Errol's trying to do lots of acrobatic tricks but none of them seem to work. Taking a leaf from her Great Uncle Owa, Sam advises Finn and Errol to focus on one trick at a time. Even with Sam's advice Errol doesn't look like he'll be ready in time until Sam comes up with a genius plan inspired by a book about the circus.

When Sam, David and Kobi find a lost piano, they aim to reunite it with the owner.