Taking place moments after the last episode of season 1, the other surviving warlords return to fighting against each other, with Masamune, Shingen and Kenshin's forces are engaged in a three way battle at Kawanakajima, including Date Masamune and Sanada Yukimura locked in battle. However they find themselves surrounded by the soldiers of Toyotomi Hideyoshi who seeks to unite Japan and help it grow into a strong country. Masamune, Shingen and Kenshin's forces manage to escape. Maeda Kanji who has been aware of Toyotomi's apperance arrived too late. Keiji then visits Maeda Toshiie and Matsu, aware of their alliance with Toyotomi Hideyoshi and asked why, which he replied that he agreed with Hideyoshi that the country is being weakened due to Oda Nobunaga's activities, but also agrees that he would be like him if he lost Matsu just as Hideyoshi's lost his beloved. Maeda also request Keiji to join them due to his history with Hideyoshi being his friend, but refuses and left. Souske reports to Shingen of Utsunomiya and Odawara have fallen by Toyotomi and placing his spies in their ranks and others and Mori's alliance with Toyotomi, having Shingen to have Sanada go to the west to Satsuma and protect Kyushu alonside forces there. In Oshu after news of Toyotomi's activities and suspecting a spy in Date's forces, Kojuro is confronted by Toyotomi's general, Takenaka Hanbei, and was offered to make him one of Toyotomi's men while Hanbei's spies and men took two people hostage.

With news of Toshiie and Matsu leading the Maeda army to Echigo, Keiji tried to block their path and convince them to stop but failed as the Maeda army went past him. Kasuga arrived and tell Keiji to leave as both forces prepared to fight. Toshiie and Matsu meets with Kenshin, leading only a small force, which puzzled him until Kenshin revealed a large force of his is heading to Kaga, forcing Toshiie to defeat him and claim control of Echigo or return to Kaga and protect his people. Frustrated to prove Hideyoshi and Hanbei belief but fearing Matsu's safety, Toshiie has no choice but to return to Kaga. The two arrived and met with Kenshin's forces in Tetorigawa but were surrounded, however Toshiie is determined to protect Kaga and led his forces to attack. As the two forces fight, Keiji confronts Toshiie and Matsu, knowing if the Maeda army won mean Toyotomi's forces victory, leading Keiji to have no choice but to stop Toshiie and both he and Toshiie start fighting while questioning their motives. As both fighters face each other in full force Keiji successfully defeated Toshiie but is confronted by Matsu to fight. Kenshin, who has witness the fight, arrived at the scene and tells Matsu to retreat and acknowledge Toshiie's reasons to join Toyotomi for peace. In the battlefield to defend Oshu and most of his men survived, Date is confronted by Hideyoshi and the two fight. While Sanada is travelling with his new ally, Oyamada, and a small group of Takada forces in Oumi he hears a cry and recognize it as Oichi in Azuchi castle.

In Odawara, Date took out his six swords as both he and Hideyoshi begun fighting each other, while Sanada's forces alongside a small group of Satsuma forces begun their assault on Motonari in his Nichirin forces. Kojuro then begun his attack on Hanbei's men and the to prepares to fight each other. Date and Hideyoshi continue their fight on Odawara, with Hideyoshi gaining the upper hand. In Echigo, Kenshin manages to defeat most of the Toyotomi's forces until he is confronted by one of his generals, Ishida Mitsunari, and the two fight with Kasuga arrived on the battlefield. In Satsuma, Shimazu and Musashi had manage to defeat most of Toyotomi's forces, who have been led by Ieyasu Tokugawa with Tadakatsu. In the Nichirin fortress, Sanada spots a village about to be run over and has manage to stop it with his Spears, which has surprised Motonari. As Sanada confronts him to fight, Motonari countered his attack, leading Sanada to land on one of the mirrors and Motonari using his weapons to hold him as he activates the Solarfall, leaving Sanada to be burned. However Sanada broke free and unleashed his full power to destroyed the Nichirin, with Motonari in disbelief as he was defeated and caught in the blast. Kojuro and Hanbei continued their battle with Hanbei managing to scare him until Kojuro used Date's damaged sword against him, with Hanbei defeated and fell over the edge of the cliffs. In Odawara, Hidyoshi had beaten Date and delivered the final blow as the Castle fell on top of him, however Date manage to survived and unleashed his full power with Kojuro's sword. With the two delivering the final blow on each other, Date had succeeded in defeating Hideyoshi but has collapsed and his men went to his side. After the battle had ben won, Keiji meets with Hideyoshi and Hanbei in a trance state, with Hideyoshi telling Keiji the people would not be like him forever and tells him that Yumekichi had brought him Keiji's charm but doesn't have the right to wear it and gives it back to him, with Keiji now understands. With Hideyoshi's defeat, the Toyotomi armies scatters and returned to their families. Keiji then left Kaga in his travels. Sanada had returned to Kai and met with Shingen. Shimazu arrived and had lunch with him as Musashi duel with one of Kenshin's men, Naoe Kanetsugu. Chosokabe and his forces travel on Satsuma in a newly rebuilt Fugaku. Date and Kojuro discuss about them to be plunged into war again and must rebuild Oshu.