Question: Build a movie plot around this: Who attacks Su? The Iron Twins
Answer:
Su Can (Vincent Zhao) is a general who leads a military force to save a prince from a large fortress of enemies in the mountains. In return, the prince promises that the Emperor will make him governor of Hu Bei. Su's step brother Yuan is envious of Su, but Su loves him and asks the prince to make Yuan governor instead. Su wants to leave the military and lead a life pursuing the perfection of Wu Shu, eventually in the hopes of starting his school and teaching his skills. Su gives his great prestigious sword to a comrade Ma, then tells Yuan of his plans. Yuan expresses that he is always in Su's shadow but accepts the governorship. Early next morning, Su leaves on a horse.Five years later, Su and his wife Ying (Zhou Xun) (Yuan's sister) have a child, Feng. Su's father informs them that Yuan is returning from the military to be a governor. He warns Su that Yuan may not have come back simply to reconcile with family but to seek revenge. This is because years ago, Su's father killed Yuan's father when the latter went too far in learning a evil martial arts technique called the Five Venom Fists. Su's father then took Yuan in, but he harbors concern that Yuan is still vengeful. Su is naive and assures his father that everything will be alright.When Yuan returns, a homecoming party is held. Yuan greets his sister Ying, Feng, and Su's father. Su's father knows what is impending and asks Yuan to take his revenge on him alone, sparing Su and his family. Using his mastery of the Five Venom Fists, Yuan kills Su's father and decapitates him. He expresses his desire to be with his sister (Ying) and her son Feng as a family. When Su hears the news of his father's murder, he rushes to the scene of his father's death and is attacked by the Iron Twins. He chases them to a rapid where Yuan is offering Su's father's head to his real father as a symbol of revenge taken. A battle ensues between Yuan and Su. Yuan has a dark armour sewn into his body, making him partially invulnerable to blades. Using his Five Venom Fists, Yuan deals...