After falling unconscious, Princess Rong Le (Sophie Zhang) of Western Xi wakes up not remembering anything. In order to form an alliance with Northern Lin, she is to be married to Prince Wu You (Aarif Rahman), but Wu You rejects her. Rong Le thereupon takes on the identity of a teahouse owner named Man Yao and tries to find a mysterious book. Wu You gets to know Man Yao and falls in love with her, not knowing that she is in fact Rong Le. But Rong Le is now already promised to General Fu Chou (Jing Chao).
The resources on earth are about to be all used up, which affects the balance of the whole universe. Since many years ago, an alien tribe repeatedly visits the earth and tries to transform mammals into a new sort of animal which could replace humans. When one of those animals gets stolen from the laboratory, humans start to become aware of and fear the infilitration of the aliens. Actually, there is already a tribe living on earth, the An Lu tribe wich consists of high-end machines that are human clones. A war between humans and the An Lu tribe ensues. In the meanwhile, Biologist Mo Kai Cheng makes a groundbreaking discovery on human genes. At the same time, orphan Han Da Fang (Aarif Rahman) accidentally becomes involved in the war. Forced to fight back against the An Lu tribe, Mo Kai Cheng, Han Da Fang, Ji Na (Gina Jin) and Feng Cheng Xiu form a fighting team.