Zhong Zi Kiu and Cheung Sam Yue are childhood friends who have taken very different paths because of crimes committed by each other's fathers. After her father was imprisoned, Yue changed her name and surname, hoping to have a new life. Even if she got married and had a daughter, she never mentioned her past, vowing to not repeat the mistakes of the previous generation, and chooses to be an insurance investigator as a career.
The two hadn't seen each other for a long time, but they met again because of a 10 million life insurance. Yue's husband Yin Hao Ran died unexpectedly, but the insurance amount was increased a few months before his death, and knowing Yue's life before the accident happened, Kiu suspected that it was not an accident. But what is the truth?
In the northwest desert where countless prosperous dynasties have flourished and fallen, there is a rumor that buried amongst the sand exists a tomb containing countless riches. A group of mysterious guardians have been guarding the map to the location of the treasure until a fierce rivalry erupts. A notorious international crime group, The Company, manage to hunt down the map keeper but not before he manages to pass the map to a young chivalrous man, Ciao Fei (Jay Chou).
Ciao Fei was forced to give up the map to save the life of his mentors daughter Lan Ting (Lin Chi-ling). Teaming up with Hua Ding Bang (Chen Daoming), who is a famous archeologist, and Lan Ting they embark on a dangerous journey to recover the map and fight to protect the ancient treasure.
