Li Mochou comes to kill Lu Liding and his family. She abducts their daughter, Lu Wushuang. Cheng Ying is saved by Huang Yaoshi, and the Wu brothers are saved by Ke Zhen'e. Yang Guo meets Ouyang Feng and is adopted as son by him. Afterwards, Guo Jing and Huang Rong also find Yang Guo and take care of him.

While Guo Fu and the Wu brothers are taught martial skills, Yang Guo is only taught literature. However, Ouyang Feng finds Yang Guo on Peach Blossom Island and teaches him the Toad Stance. When Guo Jing finds out about this, he drives Ouyang Feng out of the island.

Guo Jing takes Yang Guo to Quanzhen sect to be educated there. However, Yang Guo's teacher, Zhao Zhijing, abuses him.

Yang Guo runs away from Quanzhen and is saved by Granny Sun. Granny Sun is later accidentally killed by Hao Datong and Yang Guo is taken as disciple by Xiaolongnu from the Ancient Tomb sect.

A Mongol prince named Huodu is interested in Ancient Tomb sect skills and approaches Zhao Zhijing to make him steal the map of the tomb from Quanzhen's archives.

Guo Jing and Huang Rong come to Quanzhen to visit Yang Guo. However, they are told that Yang Guo has left and joined the Ancient Tomb sect. Yang Guo impersonates Wang Chongyang to make fun of Quanzhen monks.

Yang Guo befriends a Mongolian named Yelu Qi. A Jin princess named Wanyan Ping comes to the Yelu family to take revenge for her family. However, Yang Guo immediately recognizes that Wanyan Ping and Yelu Qi are actually also in love with each other and tries to help them get together.

Yang Guo finds the perfect place to practice the Maiden Sword routine. However, their practice is disturbed by Zhao Zhijing and Yin Zhiping.

Li Mochou visits the Ancient Tomb sect with her apprentice, Hong Lingbo. After they get into a skirmish with Xiaolongnu and Yang Guo, Xiaolongnu closes all exits from the tomb and traps all four of them with no way out.

Xiaolongnu finds a way out of the tomb. Yang Guo finds Ouyang Feng again, who closes Xiaolongnu's acupoints and teaches Yang Guo some martial skills. While they are away, Yin Zhiping blindfolds and rapes Xiaolongnu.

Yang Guo meets Lu Wushuang, who is being chased by Li Mochou. He helps her get away from her former teacher.

Yang Guo meets Yelu Qi again, who turns out to also be Zhou Botong's secret apprentice.

Lu Wushuang is detained by Guo Fu and the Wu brothers, who think she will lead them to Li Mochou. Li Mochou then detains both Lu Wushuang and Yang Guo. Lu Wushuang manages to escape and tries to get help from Guo Jing.

Yang Guo and Lu Wushuang are set free by Ouyang Feng. Huodu's teacher, Jinlun Guoshi, is planning to become the leader of the martial world.

Yang Guo meets Hong Qigong on top of Mount Hua. Ouyang Feng stumbles on them, and he fights with Hong Qigong day and night, interrupted only by Yang Guo cooking meals for them.

Both Hong Qigong and Ouyang Feng get injured deeply. Each of them teaches Yang Guo their best martial skills so he can show the other. They both die and Yang Guo buries them.

Guo Jing hosts a hero convention to form an alliance against Mongol invasion. While Yang Guo is staying with Guo Jing's family, Guo Fu falls in love with him.

Guo Jing plans to marry Guo Fu to Yang Guo. Lu Youjiao takes over leadership of Beggar Sect from Huang Rong.

Jinlun Guoshi crashes the hero convention and demands to be annointed the leader of martial world. Xiaolongnu comes to the convention and finds Yang Guo.

With the help of Xiaolongnu, Yang Guo succeeds in driving away the Mongolians and becomes a hero. However, when he announces his intention to marry his teacher, he is shunned by the martial world.

Yang Guo and Xiaolongnu meet and help another student-teacher couple who are condemned by society. Yang Guo goes to Quanzhen to ask Qiu Chuji who killed his father, Yang Kang.

The student-teacher couple are stoned to death by their neighbors. When she sees this, Xiaolongnu becomes upset. Huang Rong convinces her to leave Yang Guo for his own good. Yang Guo falls into a valley and is saved by Cheng Ying.

Cheng Ying's cousin, Lu Wushuang, joins her but she is also still chased by Li Mochou. When Li Mochou comes, they are saved by Huang Yaoshi.

Shagu tells Yang Guo that Guo Jing and Huang Rong were the ones who killed Yang Guo's father. He then joins forces with Jinlun Guoshi because they both want to kill Guo Jing. While practicing martial skills, Xiaolongnu is injured and is saved by Gongsun Zhi from Passionless Valley.

Zhou Botong is detained by people from Passionless Valley for wreaking havoc there. Yang Guo and the Mongolian mercenaries follow him there. After losing hopes to see Yang Guo again, Xiaolongnu accepts Gongsun Zhi's marriage proposal.

Yang Guo meets Xiaolongnu and they try to leave but Gongsun Zhi doesn't let them go and imprisons Yang Guo. He also poisons him with Love Flower. Gongsun Zhi's daughter, Gongsun Lu'e, helps Yang Guo escape but both of them fall into a trap door.

Gongsun Lu'e meets her mother, Qiu Qianchi, who has been trapped underground by her husband for years. Together, they crash Gongsun Zhi's wedding to Xiaolongnu.

Gongsun Zhi fights against Yang Guo but is poisoned by Qiu Qianchi and runs away. Qiu Qianchi gives Yang Guo half of the Love Flower antidote and promises him the other half when he brings her the heads of Guo Jing and Huang Rong.

Yang Guo goes to Xiangyang with Xiaolongnu to kill Guo Jing. Wu brothers try to infiltrate the Mongolian camps and kill Kublai. They are arrested, so Guo Jing and Yang Guo try to free them.

Guo Jing tells Yang Guo what really happens when Yang Kang died. Yang Guo changes his mind about killing Guo Jing and they return to Xiangyang.

Huang Rong gives birth to twins, a girl and a boy. Xiaolongnu takes the baby girl but the baby is then taken by Li Mochou, who thinks it's Xiaolongnu's baby with Yang Guo.

Yang Guo meets a giant condor who takes him to Dugu Qiubai's tomb. Wu brothers fight each other in the woods to determine who gets to be with Guo Fu. Yang Guo stops their fighting.

Wu brothers stop fighting each other, but when they see Li Mochou they try to take revenge on her. Li Mochou throws Icicle Needles at them. Yang Guo, who thinks he is going to die anyway, sucks the poison out of their blood and gets more injured than before. Xiaolongnu finds out that Yin Zhiping raped her.

Yelu Qi tries to assassinate Kublai and is almost discovered but is saved by Zhou Botong. Zhou Botong and Xiaolongnu is trapped in a cave by Jinlun Guoshi and Zhao Zijing.

Yelu Qi goes to Xiangyang to meet Guo Jing. Reverend Sindu goes to Passionless Valley to find the antidote to Love Flower. In a fit of rage, Guo Fu chops off Yang Guo's left arm.

The giant Condor treats Yang Guo's injury and trains him in Dugu Qiubai's sword martial arts. Huang Rong meets Li Mochou who is still carrying the baby Guo Xiang.

Huang Rong fights with Li Mochou, but the baby is stolen by Yang Guo. Huang Rong then joins forces with Li Mochou to find Guo Xiang. Zhao Zhijing wrestles the title of Quanzhen abbot from Yin Zhiping and collaborates with the Mongolians.

Quanzhen elders come out of meditation to retake the monastery from the Mongolians. Xiaolongnu arrives to kill Yin Zhiping, but he feels so guilty that he commits suicide. Xiaolongnu is accidentally injured by Quanzhen elders while they are fighting against Jinlun Guoshi. Yang Guo finds Xiaolongnu and they get married.

Yang Guo and Xiaolongnu go back to the Ancient Tomb. Zhao Zhijing is killed by Quanzhen elders for treason.

Li Mochou goes into the Ancient Tomb, followed by Wu Santong, Wu brothers, Guo Fu, and Yelu Qi. Guo Fu mistakenly throws poison darts at Yang Guo and Xiaolongnu.

Yang Guo and Xiaolongnu retreat to a remote hut. They are visited by Reverend Yideng and Ci'en (Qiu Qianren). They all go to Passionless Valley to seek the antidote for Yang Guo.

While trapped in a Love Flower formation, Li Mochou uses Hong Lingbo to escape and kills her in the process. Huang Rong also comes to Passionless Valley and Xiaolongnu returns Guo Xiang to her. Qiu Qianchi tries to make Ci'en kill Huang Rong.

Gongsun Lu'e secretly gives Yang Guo a map of where Reverend Sindu is detained so Yang Guo can save him. She also poisons herself with Love Flower to get her the antidote from her mother.

Xiaolongnu fights Gongsun Zhi to get the antidote for Yang Guo, but Yang Guo throws it to the bottom of the Passionless Valley because it's not enough for both of them. Huang Rong talks Xiaolongnu into convincing Yang Guo to take Heartbreak Grass to cure himself. Xiaolongnu then writes a note to Yang Guo to meet her in 16 years, then disappears.

Sixteen years later, Yang Guo meets Guo Xiang. They convince Zhou Botong to meet with Yinggu. After being forgiven by Zhou Botong and Yinggu for killing their son, Ci'en dies in peace.

Ke Zhen'e tells Yang Guo the real story of Yang Kang. Lu Youjiao is killed and the Dog Beating Staff is stolen by Huodu.

Beggar Sect holds a competition to choose their next leader. Yang Guo gives Guo Xiang her birthday present by killing many Mongolian soldiers and keeping Xiangyang safe. Huodu is killed by Da'erba.

Guo Xiang is kidnapped by Jinlun Guoshi. Huang Rong, Cheng Ying, and Lu Wushuang go to Passionless Valley to look for Guo Xiang and Yang Guo. On their way, they meet Zhou Botong and Reverend Yideng.

Jinlun Guoshi is detained by Zhou Botong, but while the others are away, Guo Xiang is tricked into releasing him. Yang Guo leaps to the bottom of Passionless Valley and finds Xiaolongnu.

Guo Xiang is used as leverage against Guo Jing so he would surrender Xiangyang to the Mongols. Huang Yaoshi comes and leads the Song army to repel the Mongols. Yang Guo saves Guo Xiang and kills Möngke Khan.