Since ancient times, immortality has been humanity's ultimate dream. Yet even with the advances of modern science, the mystery of eternal life remains unsolved. A fire in early 2009 brought an immortal and an elixir of immortality to light, drawing the attention of the 376th Geological Survey and Research Institute, part of the General Logistics Department, a special state agency. Is the immortal girl in the Tang Dynasty tomb friend or foe? What are the true identities of the Fang siblings? Can the ultimate secret of the elixir of immortality be revealed? Follow Shen Zhuo and his comrades as they pursue clues to the immortal and the elixir in a covert battle that puts human nature, good and evil, right and wrong, to the test.