Making mooncakes with Ah Ma for the Mid-Autumn Festival was the last day of Peijing's old life. Now, adapting to their new life in Australia, Peijing thinks everything will turn out okay for her family as long as they have each other, but cracks are starting to appear. Her little sister, Biju, needs Peijing to be the dependable big sister. Ma Ma is no longer herself; Ah Ma keeps forgetting who she is; and Ba Ba, who used to work seven days a week, is adjusting to being a hands-on dad. How will Peijing cope with the uncertainties of her own little world while shouldering the burden of everyone else? And if Peijing's family are the four quarters of the mooncake, where does she fit in?
