San Francisco, 1989: Forty years after Mao and his People's Liberation Army set poised to change China forever, Dr. Lili Quan prepares for a journey that will change her life forever. To honor her mother's dying wish that Lili "return home," Lili reluctantly sets out for China. For Lili, a passionate idealist, this will be an extraordinary trip filled with remarkable discoveries - from meeting and falling in love with Chi-Wen Zhou, a victim of the Cutural Revolution and zealous Taoist, to finding Dr. Ni-Fu Cheng, the grandfather Lili believed had died years ago. But Dr. Cheng has made the most remarkable discovery of all: he's discovered the secret to long life. As Dr. Cheng's only relative, Lili's life is in jeopardy. As greedy and unscrupulous men vie for control of the most earth-shattering discovery of the century, Lili Quan could become a pawn in a deadly and dangerous international game. Before Lili can hold the key to the future, she must unlock the deadly secrets of the past.