The third episode in this series of five stunningly beautiful documentaries, filmed over three years with unique access to the private side of China, continues the stories of Chinese children, mothers and journalists investigating the effects of climate change across this vast country. On the Tibetan Plateau, novice monk Gama finds out how a huge open cast mine, 14 times the size of the City of London threatens to contaminate the headwaters of China's 'mother' river, the Yellow River. In central China, a courageous young mother finds out that a local factory has been releasing poisonous hydrogen cyanide. And on the coast, the four young journalists enter a competition, to highlight the plight of the endangered spoon-billed sandpiper.