The murder of a young Tibetan nun at the hands of Chinese border guards at the rooftop of the world offers a unique parable for the tale of modern Tibet.

Chinese police are instructed to take any measures necessary to protect the border of Tibet. When a group of climbers witness the murder of a young Tibetan nun who is fleeing to India, two men have a choice: turn a blind eye and preserve their climbing careers or alert the world to the grand scale of human injustice played out daily in Tibet.

Intrepid journalist Jonathan Green here investigates the clash of cultures at the rooftop of the world. As he gains entrance to a fascinating network of Tibetan guides and safe houses operating in the name of freedom, investigates the tradition of extreme mountaineering in Chinese-occupied Tibet, and establishes contact with surviving refugees, he offers a rare, affecting portrait of modern Tibet and raises enduring questions about morality and the lengths to which we go to achieve freedom.