It follows Theo and Lulu as they go on vacation and hope for an invitation to Aunt Rita's Feast. When they arrive, mother Sjan tells them they are invited, but the family car cannot be driven and a lion has escaped from the zoo.

The Dubbel family participates in a chocolate competition organized by Ko Bonoca. When problems arise at the chocolate shop, they are forced to move to a campsite, where their mother, Chanelle, leads the entertainment team and their father, Jan, runs the kitchen.