Kiso no Yoshinaka hears that Yoritomo is sending a punitive force. Kiso has the bridges at Uji and Seta dismantled to protect himself, and he dispatches his men to confront the force under Yoshitsune and Noriyori. The narrative then tells the story of two of Yoritomo's horses that are part of the force.
Yoritomo had two great horses named Ikezuki and Surusumi. The warrior Kajiwara Kagesue asks for Ikezuki, but Yoritomo gives him the horse Surusumi instead. Then Yoritomo gifts Ikezuki to another retainer, Sasaki Takatsuna. With this gift, Sasaki vowed to be first across the Uji river at the upcoming battle of Uji river. All of Yoritomo’s men leave Kamakura and head for the capital. Along the way, Kajiwara spots Ikezuki and learns it belongs to Sasaki. Kajiwara becomes very upset and confronts Sasaki, complaining that their lord favors him more even though they offer him equal service. Sasaki then lies, telling Kajiwara that he stole the horse because he didn’t have one good enough to cross the Uji river because the enemy had torn down the bridge. Kajiwara regrets that he didn’t think of stealing Ikezuki first.
Yoritomo’s men proceede in two separate forces from Owari onward. The main force is led by Noriyori and the flanking force by Yoshitsune. They removed boards from the bridges at Uji and Seta and attached abatis to the frame. Yoshitsune, possibly testing his men, suggested going around to another crossing point because the river was high, but his men decide to cross the river here. Sasaki and Kajiwara bolt into the river and vie to be first across. Sasaki ultimately wins and announces that he is first across the Uji river. As the warrior Hatakeyama is crossing the river, his horse is shot and he proceeds on foot. The young warrior Shigechika, also without a mount, grabs hold of him, but then jumps over Hatakeyama to be the first to cross the river on foot; everyone laughs at his gumption. The battle begins, and Yoritomo's men crush Yoshinaka's, who begin to flee to the west.
Yoritomo had been notified of who crossed the river first and Yoshinaka learned that his men were being defeated at the Uji river. Kiso goes to Rokujō to bit good bye to Go-Shirakawa, but he hears that the men from the east had already pushed to the Kamo river, so he decides to head toward the battle. Enroute, he stops at the house of a gentlewoman he has been seeing and lingers too long with her. One of the men in his service, Echigo no Chuda Iemitsu, chides Yoshinaka into returning to the battlefield by committing suicide to serve his lord in the afterlife. Yoshinaka heads for the Kamo riverbed, while Yoshitsune rushes into the city to protect Go-Shirakawa, who is very grateful for his arrival. Sensing the end is at hand, Yoshinaka heads towards Seta to search for Kanehira, beside whom he promised to die.
Yoshinaka searches for Kanehira and finally finds him at Otsu, on the shore of Lake Biwa. Their numbers, already small, continue to dwindle as they meet and push through the much larger forces under Yoshitsune. Eventually, they are down to five, and Yoshinaka sends away his woman warrior (who appears here for the first time in the story); she has a final battle and then flees to the north. When only Yoshinaka and Kanehira remain, Kanehira urges his lord to go to a pine grove and commit suicide while he fends off the enemy. Enroute, Yoshinaka's horse gets stuck in a rice paddy, and, as he turns around to check on Kanehira, he is struck by an enemy arrow and dies. Kanehira commits suicide.
Imai’s older brother, Higuchi no Jiro Kanemitsu, learning that both Yoshinaka and Kanehira are dead, heads to the capital to fight one final battle. He and his men fight valiantly, but he is eventually convinced to surrender by the Kodama league, allies of Yoritomo who promise to trade their merit -- the awards they should win in battle -- for his life. Yoshitsune and Noriyori support this plan, and he is initially spared, but the nobles (and probably Yoritomo) are so enraged by this decision that the death sentence is reinstated. Higuchi is paraded through the streets with the heads of Yoshinaka and his last four men. He is executed the next day. The Taira are now in Fukuhara, and they build a fortress at Ichi-no-Tani.
Tomomori and his sons, particularly Noritsune, engage former allies as well as Minamoto partisans at six locations close to Fukuhara: Shimotsui; Fukura; Minoshima; off Nishinomiya; Fukehi; and Imagi. Noritsune is unstoppable, killing many of the enemy, taking prisoners, and forcing the remainder into flight. He returns to Fukuhara and is praised by all.
Noriyori and Yoshitsune head west to engage the Taira. The fourth of the second month was the anniversary of the death of Lord Kiyomori, so the Minamoto decided to wait to attack in respect of the rites for Kiyomori’s death. The rest of the chapter names the men on the Minamoto forces that were on their way to Mount Mikusa.
The Minamoto forces are waiting to attack on the slopes of Mikusa. Yoshitsune asks his men if they should wait until morning or attack at night. They decide to attack that night and they light their way by setting the houses and such on fire on the way to where the Taira forces are. The Taira did not suspect an attack, so they went to sleep after laying down their weapons and taking off their armor. The Minamoto attacked with full force and surprised the sleeping Taira causing them to flee, most of whom fled to Ichi-no-Tani.
Munemori asks Noritsune to set up defenses at Ichi-no-tani, which Noritsune does. Meanwhile, Yoshitsune and his men try to find a way to attack the fortress from the cliff behind it. One retainer suggests letting an old horse go ahead of them so that it can find the easiest path. They do so and follow the horse for a while before they set up camp. They then find an old hunter, who tells them that deer can pass down the cliff to the plains below. Yoshitsune takes the man's son as his retainer, and has the young man lead the way toward the rear of the fortress.
We are introduced to the Kumagai, who have been sent with Yoshitsune's forces. Wanting to be the first to attack, they leave Yoshitsune to join the frontal forces under Doi. He takes his son to slip in and be the first to make a frontal assault on the fortress. Another warrior, Hirayama, has the same intent. This episode describes this very small group of men calling forth Taira warriors and engaging them in front of the fortress. Both the Kumagai father and son and Hirayama fight bravely; when the younger Kumagai takes an arrow to the arm, his father urges him to fight on. All three survive this initial attack, which is described in hyperbolic terms in this episode celebrating warrior valor.
An assault from Ikuta Wood begins with the Kawara brothers pushing ahead of the Minamoto forces to be the first to attack the fortress from that side; both are killed as they do so. Kajiwara Kagetoki, commanding a force in Ikuta Wood, signals his troops forward. One of his sons rushes out ahead, and Kajiwara rushes in pursuit to protect his son. They press into the Taira stronghold, then retreat. At this point, Kajiwara sees that one of his other sons has been left behind, and he presses forward again, finds his son, and the Minamoto assault then continues.
The frontal attack on the fortress rages on, favoring neither side. The tide changes when Yoshitsune leads a charge down the Hiyodori ravine behind the fortress, completely surprising the Taira. They light the fortress on fire, and the men inside flee to boats offshore. Boats sink under the weight of too many aboard, and it is decided that only high-ranking members of the Taira side can board, and those of lower ranks are hacked at with swords when they try to board. With all the others, Noritsune abandons the fortress and flees to the boats.
Tomomori is effectively spared by a member of the Kodama league: Tomomori had formerly served as governor of Musashi, and the league feels it owes him at least the courtesy of escape. The episode focuses primarily on the Taira warrior Etchū no Zenji Moritoshi, known for his great strength, who is killed by trickery.
As the Taira flee, the poet-warrior Tadanori is spied by Okabe no Tadazumi. Tadanori pretends to be a Minamoto, but is given away as an aristocrat by his blackened teeth. Tadanori continues to hide his identity as Tadazumi engages him. When he is about to kill Tadazumi, Tadazumi's page cuts off Tadanori's arm. Tadanori realizes that all is lost and asks to recite the name of Amida as he is killed. His identity is only discovered by his signature on a poem slip tied to his quiver. All mourn the loss of this master of poetry and war.
Taira no Shigehira, Kiyomori's son and the man responsible for the burning of the Nara temples, tries to escape the battlefield accompanied by his foster brother, Morinaga. Shigehira's mount is hit by an arrow, slowing it down, and Morinaga abandons him as the Minamoto close in. Shigehira tries first to drown himself and then cut open his stomach, but he is captured alive and made a prisoner. The narrator notes the shamefulness of Morinaga's behavior
As the battle come to an end, the Taira are fleeing from the battle field to the boats ashore to get away. Kumagai, a great warrior fighting for the Minamoto, sees a high-ranking warrior on the horse riding towards the shore and calls him back to fight. The man returns, engages Kumagai, and Kumagai easily wrestles him to the ground. When he is about to strike off the warrior's head, he realizes that this is a sixteen or seventeen-year-old boy who is around the same age as his son. Although Kumagai did not want to kill him, seeing that there are soldiers catching up to him, he knows that this boy will inevitably die and decides to cut off his head and pray for him. Kumagai wraps the head in cloth and takes the flute he found in his clothes with him. Later, they realized that this boy is Taira no Atsumori, Tsunemori’s son who was a great flutist. Moved by this experience, Kumagai renounces the world and spends his life praying for the soul of Atsumori.
Many high-ranking Taira are killed, including Narimori and Tsunemasa. Tomomori and his son Tomoakira, who had been positioned at Ikuta Wood, try to escape. Minamoto forces attack, and the commander targets Tomomori, but Tomoakira intervenes and kills him, only to be killed by the man's page. Tomomori is able to escape to the boats, but he has to leave his beloved horse behind. Overcome with guilt for having been saved by his son's sacrifice, Tomomori laments his fate, and the other Taira weep with him.
More Taira die as they try to flee: Moromori (Shigemori's youngest son) dies trying to rescue a comrade; Michimori (Norimori's son) , is killed as he tries to commit suicide; teh Genji display the heads of over 2000 at Ikuta Wood. We learn that no fewer than ten Taira commanders have died, and countless others. The episode ends with a lyrical description of the Taira flight.
One of Michimori’s follower came back to the boat that Kozaishou, Michimori’s wife, is on and reports to her that Michimori has died in battle. Kozaisho could not believe the news at first, but after a few days, her hopes diminish and stays in bed for days. Her nurse was very worried and Kozaisho tells the nurse about the dream that she had where Michimori walks towards her. She feels that her only way out is to jump into the water rather than missing him in agony. The nurse decides that if Kozaisho is going to suicide, she shall follow. As the nurse falls asleep next to Kozaisho, she walks towards the edge of the boat and looks up the moon for the west side. After she recites Buddhist verses, she jumps into the water. They were able to retrieve Kozaisho’s body, but she was long gone. So, they wrapped her in Michimori’s armor and let her sink into the water.