The four dimensions continue to unite as Zarc effortlessly crushes Sora and Edo. Kaito and Shun continue the fight against Zarc while people from Heartland and Neo Domino City start appearing in the Fusion Dimension.
Gongenzaka and Jack fight against Zarc next, trying their best to reach out to Yuya's soul buried in Zarc's darkness. A revived Crow and Sawatari decide to join in when Zarc's Supreme King Dragons swarm the field.
Crow notices that Zarc is starting to lose his composure, leading him and Sawatari to up their game against Zarc's dragons. As dimensional integration is getting closer to completion, Reiji tries to convince his dad to stop Zarc.
Ray's soul possesses Reira so she can battle against Zarc alongside Reiji. Zarc boasts that he is the creator of Pendulum Summon, but Ray is determined to stop him once and for all using the four natural energy cards.
Things have seemingly returned to normal in the Pendulum Dimension, but Yuya gets the feeling that something is missing. Reiji has him duel against Tsukikage to restore his memories and make him finish the Lancer's goal for good.
The battle royale continues. As Yuya keeps fighting, his memories start flooding back to him. Yuzu's dad suddenly remembers too as the rest of the world slowly begins to remember the Lancers and the battle against Zarc.
Reiji reveals that Zarc is still alive and Reira is barely holding back his malevolence. The world must be united and Yuya must purge Zarc's evil once and for all. Yuya is unsure. but Gongenzaka attempts to ignite his fighting spirit.
Yuya arrives in the Xyz Dimensions with Dennis as his next opponent. Threatening to turn the traumatized citizens of Heartland into cards again, Dennis forces Yuya into a duel against him and his Xyz/Fusion mix.
Yuya arrives in the Fusion Dimension where he finds a distraught Shun. Like with Yuya's counterparts, Ruri and the others have not been resurrected following Ray's revival. Yuya tries to calm Shun down only to end up the target of his fury.
Jack appears to taunt Yuya over his fear of using his counterpart's dragons in fear of summoning Zarc. Unable to accomplish anything as is, Yuya challenges Jack to a duel while Reiji makes it so everyone can watch the battle.
Yuya finally listens to his other selves and summons all four of his dragons to defeat Jack. However, there is one final challenge before him in order to become a Dueltainer and purge Zarc: his rival and friend Reiji Akaba.
The curtain is about to fall for the last time. The final battle between Yuya and Reiji rages on. Dragons face off against D/D/D as the whole world watches. What will be the final fate of Yuya, Yuzu, and all four dueling dimensions?
It's a battle between brother and sister when Lulu launches a surprise attack on Shay! Can these siblings work things out, or will this family feud tear them apart forever?
