Yang Hui-zhen, a mysterious princess on the run from corrupt government officials, is joined in her endeavors by skilled Buddhist monks and an unambitious painter named Gu Sheng-zhai.

Set in Sung Dynasty at a tumultuous time when China is invaded by the northern Jin Empire, the story revolves around swordsman Ge (David Tong Wai), who is wronged for murdering the son of the Prime Minister. Luckily, his superb kung fu helps him escape. But when the Sung General Chang is killed by the Jin Admiral Wanyan, and Chang's beautiful daughter Chu (Han Hsiang Chin) is seeking a patriotic hero to avenge his father's death, Ge pledges to assassinate Wanyan within ten days and marry Chu. But he has to first deal with the four kung fu masters serving under the Jin Admiral.

The film opens with a duel on a beach between two master swordsman. An elderly master looks on as the two battle. He stops the duel and proclaims one swordsman the winner and awards him the coveted Purple Light Sword making him the new Sword King. He returns home to show his sickly teacher the treasure but they are attacked by the weird minions of evil King Gold who wants to combine the power of the sword with his developing Fire Ball power. The Sword King loses the sword, his master is killed and is forced to join forces with his opponent from the duel to retrieve it. Along the way they are joined by the daughter of the Blind Master and later the Beggar Army.

During the Sung dynasty with Emperor Hsiao Hsia in power and freedom fighters, who are based in the Tai-hun Mountains. Miss Shang is on her way to Dragon City to receive secret plans to take to the rebel stronghold. But the Mayor kills her contact and takes the plans. She must now find the plans and exact revenge upon the murderous Mayor.