Nina set up Petz Club with Oscar, Tim and Marlou the Dog. They created this secret club to help find lost animals and return them to their inconsolable young owners. Our young heroes have to juggle school life and running Petz club investigations. Becoming a detective you're just 7 years old is not that easy. But with methods and complementary skills there is nothing our heroes can't do! (jakelijan virallinen teksti)