After Japanese warriors execute the Chinese Jingwu kung fu school's headmaster, Chen Zhen, and raid a number of schools in an effort to weed out Jingwu rebels, Zhen's brother, Chen Shen, vows revenge.

After Japanese warriors execute the Chinese Jingwu kung fu school's headmaster, Chen Zhen, and raid a number of schools in an effort to weed out Jingwu rebels, Zhen's brother, Chen Shen, vows revenge.