Denise Van Outen presents this social experiment that sees proudly picky families swap their favourite supermarkets for a week of living exclusively off the bargain stores. First up are the Phillips family from Kent, who are challenged to ditch their premium 'big shop' and live off one discount store for a week. From mealtime favourites to laundry staples and beauty buys, every corner of the household is put to the test as they swap pricey products for purse-friendly alternatives.