In this brand-new series, Denise van Outen discovers savvy shopping secrets from the people who really control our weekly shop: the supermarket buyers. From the discount disruptors to the premium grocers, we lift the lid on how buyers decide what items will sell in stores and, ultimately, in our shopping trolleys. How do they predict demand and what the next big trends will be? In this episode, Denise learns amazing truths behind the scenes at Marks and Spencer, from Dine In secrets and the power of Percy Pigs, to fashion and flowers.