This episode investigates the biggest names on the high street, looking at the promises made by retailers like Boots, M&S and Sainsbury's and whether they're keeping them. From ditching plastic to removing sweets at the till, the team name the stores that make eye-catching promises but don't keep them. Supershoppers looks at cereal giant Kellogg's, and investigates the latest trends in soft drinks. The programme also investigates the astonishing sums that we spend on pet gadgets.