China is in flux yet again. For years the path to prosperity here seemed clear, with more freedom on the way as well. Yet nobody saw President Xi Jinping coming. Xi Jinping has taken a sword to the political elite, smashing dissent and sending the economy in a completely new direction, with tech companies growing rapidly. "Fifteen years ago not a single Chinese company could have developed a mobile phone", explains Wang Jipeng, a software entrepreneur whose company has grown from 10 to 2000 staff in the last ten years. Not everyone is happy though: house prices are rising, and many have become victims of development officials who force residents into leaving. The President's anti-corruption drive is another source of controversy, and the use of interrogation or 'shuang gui' has been described as a "breach of human rights" by a former state prosecutor. Meanwhile, an environmental activist explains the improvements made in reducing pollution: "We're in a better position now when compared to the past. We've had many successful experiences regulating factories." Despite youthful optimism however, air pollution still remains an unrelenting pressure. A snapshot of China and its people, who live on the brink of uncertainty.