Nina set up PETZ CLUB with Oscar, Tim and Marlou the dog . This secret club has as its mission plan to find any lost animals - hairy ones, tufty ones and even those just sniffing and skulking around - and return them to their inconsolable young owners. Our young heroes have to juggle academic school life, after school activities (like the ones parents think are great fun such as piano and classical dance) and running a PETZ CLUB investigation. You must know that becoming an expert at something when you are just 7 or 8 years old is not the easiest thing in the world to do. But our 4 young heroes are methodical in their investigations and pool their complementary skills to always find that lost wandering pet.