River Where the Moon Rises - Season 1

Part 1: Go Won Pyo of the Gyeru Tribe comes before King Pyeongwon and threatens him with his private army for the exclusive rights to salt. Despite the King's unrest, Queen Yeon leaves for patrol taking Princess Pyeonggang with her. Meanwhile, On Hyeop the chief of the Sunno Tribe tests his son's manhood. Part 2: While Queen Yeon visits On Hyeop, Go Won Pyo arrives on King Pyeongwon's decree to kill Queen Yeon and Princess Pyeonggang. Princess Pyeonggang escapes with Dal's help as Oh Hyeop and Queen Yeon confronts Go Won Pyo. Meanwhile, King Pyeongwon looks for Wol Gwang, Queen Yeon's secret lover.

Part 1: Eight years go by and although Yeom Ga Jin wants to live a humble, quiet life, she has one last mission to complete, to assassinate King Pyeongwon. On her way to the palace, she saves On Dal's life but does not recognize him, and they go their separate ways. Meanwhile, Go Won Pyo prepares an attack on the King during the farewell ceremony for the late Queen Yeon. Part 2: On Dal saves Ga Jin and nurses her back to health. While she recuperates, her companions hear about her failed attempt and search for her. When they find her, they remind her of their rule to kill anyone who sees their face or to marry him to make him one of their own. Meanwhile, Go Won Pyo tells his son, Go Geon, to protect the palace.

Part 1: Ga Jin rushes back to Cheonjubang after hearing that her father was in trouble due to her failing her mission to assassinate King Pyeongwon. On her return, Du Jung Seo releases her father, Yeom Deuk, but instead holds her captive after she asks about her past. Meanwhile, On Dal hears of Ga Jin's predicament and rushes to save her. Part 2: On Dal takes Ga Jin to Mount Jangbaek where the owner of a medicinal herb store owner resides. Believing the owner will know the court lady that Ga Jin believes knows her forgotten identity, On Dal causes a scene on the street to lure her out. Meanwhile, a composite sketch of the assassin who attempted to kill King Pyeongwon gets shown to the herb store owner by General Go Geon, Go Won Pyo's son.

Part 1: King Pyeongwon believes he is seeing the ghost of Princess Pyeonggang as she stands in front of him in the flesh. However, Ga Jin escapes with help from Go Geon who she remembers but not without being warned of her fate if she returned as an assassin. Meanwhile, hanging upside down, On Dal waits for her return. Part 2: On Dal brings Ga Jin to Ghost Valley, and the villagers welcome her and fix up a house for her to stay. However, she soon learns that On Dal is the son of General On Hyeop who had lost his life along with many Sunno Tribe members due to her father, King Pyeongwon. She decides to leave and stands at the edge of a cliff, wanting to end her life.

Part 1: Go Geon reports to King Pyeongwon that Princess Pyeonggang is alive, showing him the jade necklace as proof. He promises to bring her back safely to the palace without his father, Go Won Pyo, knowing about it. Meanwhile, Ga Jin tries to change On Dal's heavy conscience as he turns his back on her. Part 2: After conspiring with Go Geon, Hae Mo Young, the owner of the herb store, brings a body of a woman who could be the King's assassin to Go Won Pyo. Although Go Geon confirms it to be the Princess, Go Won Pyo thinks otherwise. Meanwhile, Ga Jin helps On Dal dig a well for the village, and Du Jung Seo sends San and Jin on a mission to kill Go Won Pyo.

Part 1: On Dal and Ga Jin strike water and bring joy to Ghost Valley. However, despite the happiness, Ga Jin comes face to face with Du Jung Seo who tells her about the twins. She is left to decide whether to save them and break her promise of not killing again. Meanwhile, Go Won Pyo gives three hundred mounted men and three hundred soldiers to Go Geon after seeing King Pyeongwon. Part 2: On Dal sees Ga Jin at the Capital, dressed in her assassin's attire and sword. She tells him she is there to save her friends who are faced with the death penalty. He and Pung Gae help her, but amid the rescue, On Dal gets captured. To save his life, Ga Jin reveals her identity. Meanwhile, Go Geon returns empty-handed on his mission to kill Du Jeong Seo.

Part 1: On Dal gets released from holding and reunites with Pung Gae, Weol, and the Tara twins while Ga Jin returns to being the Princess. Although they all are astonished at her royal descent, On Dal believes she will return to them. Meanwhile, Go Won Pyo meets Hae Mo Young and plots to hurt the Princess. Part 2: Ga Jin accuses Mo Yong of supplying poisoned medicine to the Crown Prince in front of the King and his royal subjects, but she is proved otherwise. The King orders Ga Jin to ground herself in her chamber. However, she leaves the palace and voluntarily joins a group of women who are about to be sold off to Silla as tributes.

Part 1: Thanks to Geon and Dal's help, Ga Jin manages to save the women from being sold off to Silla. After returning to the palace, Ga Jin suggests that the King should punish Hae Ji Weol for trying to sell the women as contributes to Silla. Meanwhile, Gochuga tells Geon that he doesn't have to leave for the borderline. Part 2: Guchuga comes up with a scheme that makes Ga Jin and Geon marry. As Ga Jin and the King don't agree with the marriage, Gochuga threatens the King. Meanwhile, Mo Yong tells Hae Ji Weol that they should do something to stop the marriage in order to prevent Gochuga from gaining more power.

Part 1: The candidates for the royal wedding are called into the palace. However, it is Gochuga's plan to make Ga Jin and Geon get married. Dal hides his identity and sneaks into the palace, but he gets caught by Geon. The King calls in Ga Jin and demands an explanation about their relationship. Ga Jin lies to the king that they are already married, and the king tells her to leave the palace. Part 2: Ga Jin leaves the palace and heads to the Ghost Valley with Dal. On her way, she goes to see Mo Yong and asks for help. Mo Yong promises to keep Ga Jin updated regarding the King and the Crown Prince. Geon finds Dal and has a duel with him, but Ga Jin appears on time and tells him to let go of her. Meanwhile, Ga Jin and Dal arrive at the Ghost Valley as a married couple. 

Part 1: Ga Jin and Dal come to Ghost Valley to live with Lady Sa. They lie to her that they are now married, hiding the fact that they are there to train Dal in swordsmanship. However, Lady Sa has a hard time accepting the princess as her daughter-in-law. Meanwhile, Geon becomes the Crown Prince's trainer, but the young prince refuses to leave his chambers. Part 2: At Ga Jin's request, Lady Sa starts giving Ga Jin all sorts of household chores befitting her new role as a daughter-in-law. In the meantime, Ga Jin trains Dal in swordsmanship and military tactics in secret. Meanwhile, Mo Yong finds herself in trouble after seeking out a fortune-teller, and Geon finally gets the Crown Prince to begin training with him.

Part 1: Despite Lady Sa's anger at Dal's decision to train in swordsmanship, he is determined to become a general like his father. Soon, his skills surpass the level at which Ga Jin can train him. She suggests that Dal go to study with a new master, and the pair set off to find him. Meanwhile, Mo Yong and the chief of Cheonjubang convince Royal Consort Hyeon to do a ritual. Part 2: Ga Jin gathers enough money to build a stable and buys some horses for the Sunno Tribe army. She informs King Pyeongwon of her plans, then meets with Mo Yong. However, Geon hears of Ga Jin's visit to the herb store and goes to see what they are up to himself. Meanwhile, Dal stays in a cave where he must train his mind before his new master allows him to train with a sword.

Part 1: After saving Ga Jin and Lady Sa by killing the men sent by Go Won Pyo, Dal falls into a state of shock. In order to help him find his path again, Ga Jin speaks to Un Am and Lady Sa about General On's wishes for Dal. Meanwhile, Geon corners Mo Yong with his knowledge of her identity. Then Mo Yong is asked to carry out a dangerous task by Gochuga. Part 2: Geon tells Mo Yong to make the poison as his father demanded so that she may not fall in danger, but he also tells her to prepare an antidote. Mo Yong comes up with a plan to get the antidote to the King on time. Meanwhile, soldiers of the Gyeru Tribe attack the Sunno Tribe. Pung Gae and Jin are captured, along with several others. Ga Jin must find a way to save them. 

Part 1: The Northern Zhou army marches ferociously down south. Bearing his weak body, King Pyeongwon calls upon all tribes to battle. The Sunno Tribe also stands up for war, whereas Gochuga sees this as an opportunity to fulfill his desire. Goguryeo faces a vast danger that will decide the fate of the nation. The only solution is for the five tribes to unite and fight as one. Part 2: Ga Jin follows the general of the Northern Zhou Mercenary Army and pretends to surrender. Dal and the others must find a way to get Ga Jin back to safety and to take down General Wibalta. As the Sunno Tribe army engages in a bloody battle that Gochuga practically pushed them into, King Pyeongwon worries about his daughter's safety. 

Part 1: Du Jung Seo poisons King Pyeongwon and Crown Prince Won, but Ga Jin and Dal save them just in time. As the King orders the incident never be spoken of, Ga Jin suspects the Queen's intentions. Meanwhile, the people of Sunno Tribe prepare to move the Pyeongyang Castle, but Lady Sa refuses to go with Dal. Part 2: Ga Jin and Lord Sa plan to have the Sunno Tribe get exclusive rights to sell salt and to have the Jeollo Tribe rejoin the Five Tribe Council. Meanwhile, Ga Jin is busy taking care of affairs that she grows inattentive to Dal who is somewhat struggling to adjust to palace life. As Ga Jin finds proof of the Queen's impropriety, Mo Yong disappears from the capital. 

Part 1: The Princess succeeds in luring Go Won Pyo and the Queen into her trap. In return for not exposing the two, she demands one thing from each of them. Slowly gaining power within the palace, the Princess falls deeply into the concern of how to deal with the Go Family. However, the Go Family's response still seems unpredictable. Part 2: Ga Jin becomes suspicious of Mo Yong's loyalty and confronts her about whose command she follows. Geon sides with Mo Yong, resulting in both of them losing the Princess' trust. Despite Dal's efforts to help Ga Jin feel more at ease, the Princess' worries continue to grow. Meanwhile, Gochuga puts his plans of revolt into action.

Part 1: Dal volunteers to lead the troops to Hwangju Fortress and subdue the revolt that has broken out. However, when Ga Jin shows up after the fighting has subsided, she and Dal argue about how to proceed from there. Meanwhile, the news of more revolts at other fortresses arrives, and Gochuga bides his time to attack the palace. Part 2: Gochuga decides that it is time to attack the palace when he hears that the King has asked for medicine to soothe his anxiety. However, when the King summons him to the palace, he realizes that things are not what he expected. Meanwhile, the lords of the other tribes are at a crossroads about which side they should take, and Dal returns to the palace, shaken from battle. 

Part 1: Go Won Pyo and his son are thrown in prison. As they await their punishment, a small moment of peace finds its way to the palace. Meanwhile, Lady Sa takes a journey to the capital to visit Dal for the first time in a while. However, not long after her visit, Tara Jin comes by with news of an attack against the palace. Pyeonggang and Dal prepare for battle and whatever fate may come. Part 2: As King Pyeongwon tries to escape from the palace, the Go Family stands in their way with the help of the Cheonjubang. Having to protect her family from the Go Family, Pyeonggang draws her sword against Go Won Pyo while Dal gives the fight that he promised to Go Geon. The fight to decide the future of the two families ensues.

Part one: It is now four years after Gochuga's death, and Crown Prince Won sits on the throne of Goguryeo. Pyeonggang fights war after war to help the young king, but her brother seems to misunderstand her intentions. Meanwhile, Dal lives like a hermit in the woods, and Geon lives as a drunkard in Silla. However, he suddenly decides to return to Goguryeo. Part two: Pyeonggang goes to the mountain where Dal lives in hiding. Despite their longing for one another, they realize that they have different paths to take. Meanwhile, Geon and Mo Yong show up in Goguryeo as the envoys from Silla. With everyone in an uproar, Pyeonggang tries to dissuade her brother from taking rash actions against Geon.

Part 1: Go Geon comes back to Goguryeo as an envoy of Silla. As the palace of Pyeongyang is in a state of unrest with his presence, King Yeongyang thinks deeply of what to do with him. Meanwhile, On Dal lives lonely in the mountains until he hears some unexpected news. Not knowing the true intentions that Go Geon holds, the tension within Pyeongyang palace thickens. Part 2: On Dal sets off from the mountains to save Pyeonggang from execution. Although he manages to get there in time, he makes a promise with the King in return for the Princess' safety. Meanwhile, in Silla, Go Geon tries to persuade King Jinheung in order to attack Goguryeo with Silla's armies. The two empires now grow restless in the midst of war.

Part 1: King Yeongyang decides to send reinforcements to Adan Fortress where Pyeonggang and Dal fight to defend it. Dal commands Pyeonggang and Jin to take the wounded back to Pyeongyang Castle, but Pyeonggang has plans of her own. As he awaits the Silla army to attack, Dal receives a letter from King Jinheung instead. Part 2: Pyeonggang escapes the Silla army camp with Mo Yong and Geon. Dal rushes to save Pyeonggang, but when he arrives, Geon is fatally wounded. Leaving the two behind, Pyeonggang and Dal return to Adan Fortress. As they near their troops, they hear Goguryeo's trumpet of victory. However, they are soon faced with an ambush.