Brave in Kung Fu Shadow (1977)
The villainous Lord Wu Yi and his devious son, Lu Tian plot to steal the famous jewel of the Gan family, the Violet Light Sword. When Lu's initial plan fails, he ends up in the grip of four crude bandits. He dupes them into becoming his accomplices and the group raze the Gan homestead stealing the sword and injuring one of the three sisters and killing everyone else. Hsu Chu and third Gan sister survive and upon returning to their destroyed fort, realize that the eldest sister has vanished. Meanwhile, Yanan, the second Gan sister has went to get their uncle for help. In trying to steal the sword from the bandits, Lu incurs their wrath and is held for ransom. The Gan's then make several rescue attempts to free their kidnapped sibling and retrieve the coveted sword.