Lt is the beginning of the 20th Century, and deep in the heart of the Dunhuang Caves, the old Taoist Priest watchman, Wang Yuanlu is doing his rounds of the Mogao Grotto. Suddenly he stumbles upon an unknown cave full of Buddhists Documents. He picks one up and as he slowly unrolls it, he discovers a painting that would take him on a compelling and touching journey back in time......