In a martial arts clan, the Iron Flag gang operates under the strict code of honor. The gang's leader, sober and fair, maintains discipline, but his trusted associate, a cunning yet ambitious brother, desires more power. As tensions bubble under the surface, an unexpected betrayal unfolds when an assassin from a rival clan is hired to sow discord. The assassination of the leader leaves the gang in chaos and leadership up for grabs. Amidst confusion and accusations, members set out on a quest to uncover the truth behind the deadly conspiracy and exact revenge on those responsible.

With respect hanging by a thread, the bond of brotherhood is put to the test. The remaining loyal disciples band together, fueled by vengeance and a thirst for justice, seeking clues that will lead them to the mastermind pulling the strings. Their journey exposes them to treacherous encounters and deadly confrontations, each step revealing how deep-seated the betrayal runs. As they hone their skills and gather allies, internal conflict threatens their unity. A critical confrontation looms, forcing the brothers to face unimaginable peril. A final showdown sets the stage for a battle not only for justice but also for redemption, as they strive to restore honor to their shattered clan and ensure peace.