The little fox is not like other foxes. He is a vegetarian. He doesn't eat chicken; his favorite food is Swiss cheese. And more than anything, he wants to become a detective. But one day, the time has come: "Ferdinand," says Father Fox, "soon you will be a big fox. It's time for you to catch your first chicken." Catching is child's play, but eating the chicken... And suddenly, the little chicken has disappeared, and Dad assigns Ferdinand his first case: to find the chicken. The little fox sets off in pursuit, and in the end, he comes up with a clever solution to his problem.