The rise of China is a defining challenge for the West. How far should it co-operate, compete or confront Beijing? And were Western countries slow to respond to China’s growing assertiveness?

The BBC’s Security Correspondent, Gordon Corera, delves into the worlds of espionage, surveillance, technology, the theft of commercial secrets, free speech at universities and political interference to explore the points of friction. In this documentary, he speaks to spy chiefs, former prime ministers and dissidents as well as those on the frontline of this Shadow War.