The mighty Tesco, Britain’s biggest retailer, a giant which has fallen from grace. It’s sales are down and it’s also facing a criminal investigation into how it overstated it’s profits. In this film from panorama they take a peek into the inner workings of one of the UK’s most important businesses a reveal why profits tumbled and how Tesco turned the screw on the people who supplied them with products and why the person in charge of protecting those vert suppliers has had her hands tied by the government. Including an exclusive interview, with the very man who built Tesco into the 3rd largest retailer in the world.