Robert Peston travels to China to investigate how this mighty economic giant could actually be in serious trouble. China is now the second largest economy in the world and for the last 30 years China's economy has been growing at an astonishing rate. While Britain has been in the grip of the worst recession in a generation, China's economic miracle has wowed the world. Peston reveals what has actually happened inside China since the economic collapse in the west in 2008.