Si and Dave explore Gloucestershire, where they cook a traditional county favourite at Gloucester's Docks. They find guinea fowl in the Cotswolds and a British alternative to olive oil. Finally, they face a cook-off against top chef James Graham. Restaurant diners decide who has created the best taste of Gloucestershire in a blind tasting.

Si King and Dave Myers explore Lancashire, where they cook a traditional county favourite at Blackburn Cathedral. They dig up the first crop of Ormskirk new potatoes and source some of the finest ducks in the north west. Finally, they face a cook-off against Michelin-starred chef Nigel Haworth. Restaurant diners decide who has created the best taste of Lancashire in a blind tasting.

Si and Dave explore Carmarthenshire, where they cook a traditional county favourite in the National Botanic Garden of Wales. They go cockling at Laugharne and source cheese from a happy herd of goats. Finally, they face the challenge of a cook-off against top chefs Sue Manson and Maryann Wright. Restaurant diners decide who has created the best taste of Carmarthenshire in a blind tasting.