Tucked away in the mountains of NSW is Cork Valley, inhbited by an odd lot of hard-drinking Irishmen. Here a government officer, looking for illicit "stills", has been murdered, and it's Napoleon Bonaparte's job to find the killer. Disguised as a horse-thief the famous half-aboriginal detective hitchhikes into the valley. But before Bony can spring the trap he develops a strong affection for these lawless, lusty characters...