Kung Fu vs Acrobatic

Duffy accidentally discovers a Kung Fu rare book from Yuan dynasty, and saves a princess when he smuggles precious antiques out of China. He also frees the powerful devil from the tomb. With the help of the princess, Duffy practices Kung Fu skills. However, he is unable to fight against the devil until he has completely learnt the Buddhist fist. Can he defeat this ancient monster and restore peace on earth?