British shoppers have embraced the home delivery economy. During the Black Friday and Cyber Monday shopping frenzy before Christmas, the total online spend was almost £6.5 billion, driven by huge discounts and sales promotions. There are now 1500 warehouses servicing these orders in the UK, which is the equivalent of roughly 5500 football pitches or the total size of Cambridge. In this second Dispatches investigation into Britain's cheap clothing market, Morland Sanders investigates the working conditions inside some of these warehouses. Secret filming shows the realities of operatives walking miles of floorspace a day to get orders out on time at the busiest time of the year and reveals what can happen when workers are unwell, arrive at work late or don't want to work overtime. What does Black Friday mean for workers on the receiving end of your orders?