The show was written by Brian (the writer of Danger Mouse) and Johnathan Trueman and was based in a fictionalized version of the Northern English village of Sabden, in Pendle, where treacle is (allegedly) a natural resource extracted through mines. However, the mines have run dry from overextraction, and the village may face destruction from a lack of economy. The main characters, Wizzle and Rosie use a Treacle finder, similar to a water dowser, to discover a vein of treacle in the abandoned mines, bringing hope to the village. The two series focus on reopening the mines, and problems faced (such as exportation). One of the recurring support characters was the Moobark, a cross between a Friesian cow and an Airedale Terrier.