The novels written by online writer Lan Ting (Lin Chiling) are very popular. She also met a fan who called himself Pai Gu (Eric Tsang) who asked for her autograph. However, Lan Ting's relationship with her father is very tense, so the latter sent Qiao Fei (Jay Chou) to invite her to dinner. Qiao Fei is a young knight who fights against tomb robbery and smuggling, but there are misunderstandings between him and Lan Ting. That night, Lan Ting suddenly encountered a car accident and was hijacked. After waking up, she found that the robbers were actually Pai Gu's gang, led by the hidden Hua Ye (Chen Daoming). They took Lan Ting as a hostage and forced her father to hand over the treasure map of the desert. Unexpectedly, it was Qiao Fei who came to negotiate. He brought the map and also brought the news that Lan Ting's father died unexpectedly. At this moment, a masked man suddenly appeared and hijacked the map. Another desert army attacked, Qiao Fei protected Lan Ting, and the two fell in love with each other. They arrived at the Ronin Tribe one after another. Qiao Fei accidentally discovered the true identity of the man who stole the map. At the same time, they gradually uncovered the secret of the lost ancient city...