The Sect of Blood & Iron

Lang Sam Lung resigns and returns to his homeland. Wan Hun and Wan Cheng, in disguise, mix themselves into the group of sedan-chair bearers that Lung hires. To receive Lang Sum Lung, Lang Vat Fung orders his servants to renovate the Lang's Fort. Master Poison arrives suddenly, asking to spend the night at the fort. Lang Yat Fung is forced to receive him for fear of his threatening him with his martial arts. Falling for Fung's daughter, Ching Ping, Master Poison claims to return five days later to marry her. Taking a chance, Wan Cheng and Wan Hun secretly kill Lung's guards. Not having the heart to kill a guard whom he finds to be a woman in disguise, Cheng, however, is attacked by her by surprise. Having been following Cheng secretly, Tit Chung Tong gives him a hand and kills the guard. Hun, Cheng and Tong create false alarm to scare Lung, forcing him to hide himself at the whore house and eventually fall into their trap.

That year, Lang Sam Lung betrayed his country, helping the Yuan's army kill the Sung's Kinq and Luk Sau Fu. Wan Hun, Wan Cheng and Tit Chung Tong are members of the Sect of Blood and Iron. After torturing Lung, they kill him. Hoping to befriend Master Poison, Lang Yat Fung sends Ching Ping to get married with Master Poison. On the way, Ching Ping is bullied by Master Poison's fighters. Ping finally manages to make her escape but is chased by the fighters. Wan Hun passes by and rescues her. Taking pity on Ping, Hun returns to the Sect, bringing her along. Wan Yick is pleased with Hun and Cheng completing their task. Discontented with Tong's acting on his own, Yick punishes him. Learning of Lung's being killed and suspecting the murderer to be a member of the Sect, Szeto Siu hurries to discuss the matter with Fung.

When discussing the way to wreck the Sect of Blood and Iron, Szeto Siu points out that he had once helped by a mysterious fighter excellent at martial arts to go against the Sect. Siu deduces that he is a member of the Pik Lok Sect, thus all go separate ways to look for him. Ching Ping grows fond of Wan Hun and reveals her affection for him. Forbidden by the rule of the Sect to involve in love affairs, Hun behaves indifferently to Ping. However, he finally yields to his passion and gets on secretly with her. Master Poison raids the Sect and captures Ching Ping. After much effort, Tit Chung Tong, Hun, and Wan Chet1g manage to save her. Ching Ping is forced to reveal her identity. Disregarding Hun's objection, Wan Vick decides to kill Ping for fear that she is a spy sent by Lang Vat Fung. Tong behaves unusually, agreeing with Vick and proposes to parade Ping down the streets.

Not wanting to see Ching Ping being killed, Wan Hun secretly releases her. Learning of this, Wan Vick, in a fury, orders to execute Hun. Tit Chung Tong offers to be the executioner so as to arrange for Wan Hun's escape. Tong tells Hun to find Ching Ping and live in seclusion with her. Thinking that Tong betrays them, Wan Cheng has a fight with him. After punishing the two, Wan Vick orders Cheng to go assist Yao who has mixed himself into Lang's Fort and Tong to go investigate Lok Yat Farm. On the way, Tong makes friends with Chu Wan Pang who is good at martial arts. Losing his memory and also ignorant of affairs of the world, Pang sticks with Tong. While investigating Lok Yat Farm, Tong is discovered and is attacked. Pang comes to his rescue. Following Yao's instructions, Cheng goes to get the map of the Lang's Fort but is besieged by Madam Sing. Tong manages to rescue him.

Wan Cheng and Tit Chung Tong return to the Sect. Not wanting to bring Chu Wan Pang along, Tong reproves him and sends him away. Lang Yat Fung reveals Yao to be the spy and the latter gets killed. Yao's spirit returns to the Sect, telling Wan Vick to retreat. Szeto Siu finds out the location of the Sect and orders full charge. Wan Yick decides to die to resist but is stopped by Wan Siu. To save strength, Wan Siu orders all members of the Sect to retreat and asks Tong and Cheng to back off. Failing to resist Szeto Siu. Tong risks his life to save Cheng and escapes with him. Chased and stopped by Szeto Siu, Tong pretends to surrender, taking the chance to kill Siu but fails. Not knowing that Tong tries to save him, the misunderstanding between Cheng and Tong deepens. Chu Wan Pang comes to the scene. After handing Cheng over to Pang, Tong draws the enemies away but he finally falls off a cliff.

Thinking that Tit Chung Tong has betrayed him, Wan Cheng, wounded, makes his escape. On his way, Cheng faints away but is saved by Wan Toi Toi. Learning of it, Szeto Siu tempts Toi to work with him to find out from Cheng the whereabouts of the Sect. Tong is saved by Shui Ling Kwong. Stopped by Shui Yau Chung to dress Tang's wounds, Kwong secretly helps him. Wan Toi Toi nurses Wan Cheng with care and manages to win his trust for her. Cheng brings Toi along to seek Lee Lok Yeung's patronage. By chance, Kwong and Tong discover a treasure with the Sect's Manual in it. While puzzling over it, Hei Sing Tin, who has been looking for the treasure, arrives at the scene. Yau Chung comes along to stop him and the two wound each other in a fight. Before Yau Chung dies, she reveals Kwong's real identity to her. Yau Chung was actually Sing Chuen Hau's wife but her husband was impotent……