The Zills family is off to Paris to see the sights and take a class at the International Pastry Academy In class, Matt and Bibi have to measure liquids to make lollipops. It's hard work, but knowing about different liquid measurements comes in handy when the Inspector General pays a visit while everyone else is out. The twins want to help. Will their knack for baking the best-ever brownies and their knowledge of capacity be enough to save the day?