The story takes place in the Qing Dynasty. Princess Beibei (played by Lucy Liu) is married by the emperor and must marry a prince of the royal family. The princess is extremely unwilling. At this time, Andrew, an English teacher with ill intentions, sees the princess's intentions and instigates her to flee to the United States. After the princess escapes, Andrew leaves a ransom letter to the emperor, asking for a ransom of 100,000 gold bars. The emperor panics and immediately sends three masters of the inner palace to the United States with the ransom to rescue the princess. Huang Qiang (played by Jackie Chan), a guard of the inner palace, saw the princess when she fled, but failed to stop her and could not forget the princess. So he asked his uncle, who was a translator, to speak for him and let him participate in the rescue operation. The captain of the guard approved his request, and the group officially set foot in the United States.