Life is not easy for Rinaldo, the sly fox. When he starts to snoop around the hen house, Bruno, the Duck Detective, is waiting for him. Rinaldo flees, without a bite to eat, without a penny in his pocket. But he wouldn't be Rinaldo if he wasn't always ready with a sly idea. So he makes the most of others' vanity and foolishness, eats without paying, picks up a pearl necklace, "borrows" a gold sports car, and tricks just about everyone. Everyone? Don't underestimate Bruno, the Duck Detective!