Exasperated with the government's unflinching attitude to escalating civil unrest, Jason Tse quit his job in Australia and jumped on a plane to join what he believes is a do-or-die fight for Hong Kong's future.

The Chinese territory is grappling with its biggest crisis since its handover to Beijing 22 years ago as many residents fret over what they see as China's tightening grip over the city and a relentless march toward mainland control.

The battle for Hong Kong's soul has pitted protesters against the former British colony's political masters in Beijing, with broad swaths of the Asian financial center determined to defend the territory's freedoms at any cost.