There are so many things around us that we cannot see inside. All those cabinets, suitcases, and closed doors--be they small, big, mysterious, or even quite plain, they make you wonder what's inside them.

Food goes inside a fridge. Laundry goes inside a washing machine. That's obvious, right? But what about a fire truck? Not to mention a garden shed or a henhouse? What goes inside them? Join Bruno the curious dog and let's find everything out together. You'll have loads of fun!