In a turbulent era marked by the decline of the Qing Dynasty, a secretive martial arts sect known for its mystical practices seeks to capitalize on the chaos. The sect is dedicated to mastering supernatural defenses against foreign gunfire and aims to become invincible through rigorous training in ancient combat styles. However, their methods require unyielding commitment, which often leads to fatal outcomes for their disciples. Li Yung, a seasoned master once revered within the sect, grows disillusioned by the perils these practices pose to the young martial artists. Perceiving it as futile and destructive, Li Yung renounces his allegiance and goes into hiding, sparking tension within the ranks.

The sect, fearing exposure and betrayal by the former master, dispatches a team of adept assassins, each specialized in a different fighting technique and weapon, to eliminate him. Among the assassins are Li Yung's own brother and an ambitious young warrior eager to prove her worth. As they search for him, alliances shift, and loyalties are tested amidst intense encounters and complex strategies. The hunters employ various legendary weapons of China, showcasing their lethal potential in breathtaking battles. With the pursuit closing in, Li Yung must rely on his experience and inner resolve to navigate the web of betrayal and danger. Meanwhile, underlying themes of honor, tradition, and the true essence of martial prowess come to the forefront.