For the first time in nearly 20 years, documentary cameras go undercover inside Tibet to investigate China’s growing control over its population. Under fear of arrest and facing Beijing’s highly-advanced state surveillance, the filmmakers reveal what life is like inside one of the most heavily-guarded and underreported regions in the world. As he reaches 90 years-old this year, the succession of the Dalai Lama – Tibet’s exiled spiritual leader – is approaching a critical point. The film investigates the mystery of a missing boy, the 11th Panchen Lama, abducted by Beijing 30 years ago whose role now holds the key to the Dalai Lama’s successor and to Tibet’s future.