In episode 5 Robin weaves through the streets of Hackney Wick, east London, talking to people who have watched the neighbourhood change beyond recognition, discovering how the London 2012 Olympic Games helped to transform the area, thanks to a massive injection of more than £9 billion, followed by an even bigger private investment. The toxic soil and polluted canals were cleaned and mammoth new developments sprung up, including Westfield, one of the largest urban shopping malls in Europe, 5 world-class sports venues, and an entirely new village.