Hanna Amon and her brother Thomas live on an estate they've inherited from their parents. Local veterinarian Brunner loves Hanna from afar, and Thomas is in love with the daughter of the local mayor.
Bored with her bourgeois life, the young Maria Variani, daughter of a professor, meets Bruno, who is part of an amateur jazz group, and allows herself to be persuaded to join the band that plays during the radio program "The microphone is yours".
Little Henery the Chicken Hawk wants to trap Foghorn Leghorn for his dinner, and Barnyard Dawg says he will help Henery to catch Foghorn on one condition - that Henery find him a bone.
After conning a potential buyer into believing that Queenie's herd is diseased, nasty would-be empire builder Duke Drake is confronted by the girl's new tough foreman Bill Foster.