Ava plans a birthday party to cheer up a lovesick Mr Barker, but things go wrong when his birthday cake goes missing during the celebrations.
Per il compleanno di mister Barker i ragazzi organizzano una festa anni '80. La torta, però, scompare.
Les enfants organisent une fête d'anniversaire années 80 pour M. Barker. Mais où est le gâteau ?
