Thefts happen frequently in a small town. A cat who dreams of becoming a great detective decides to run away from home to find the real culprit. During her journey, she meets a rooster who thinks he is very elegant, a donkey who dreams of becoming a circus star, and a guard dog who hates humans. After a lot of hard work, the four animals are about to find the real culprit, but they are mistaken for the thief. How can they prove their innocence and protect their friendship and dreams...