Yuya reaches a new place - Heartland City, the hometown of Yuto and Shay in the Xyz Dimension along with Sylvio and Gong. There they meet Duel Academy soldiers and an independent warrior from that dimension.
Gongenzaka and Sawatari fight against the mysterious Kaito, who believes them to be agents of Academia. As he summons his fearsome Galaxy Eyes Cipher Dragon, Yuto notes that something has changed in Kaito.
Kaito begins a merciless assault against Yuya with his powerful Galaxy Eyes deck. With Yuto's spirit on his side, Yuya tries to match Kaito's indomitable spirit with both Odd Eyes Pendulum Dragon and Dark Rebellion Xyz Dragon.
Yuya and the others meet the Xyz Resistance, who discuss how Heartland fell to ruin and Yusho's mysterious connection to them. Elsewhere, in the Fusion Dimension, Yuzu flees Academia soldiers when someone unexpected comes to her rescue.
Yusho explains what happened during his disappearance to Yuzu while in the Fusion Dimension. Back in Heartland, Yuya comes across an angry youth with a grudge against his Dueltaining style as Yuto refuses to stand by any longer.
Shun is determined to convince Kaito to rejoin the Resistance despite Kaito's adamant refusal. As the former friends cannot convince each other either way, they decide all they can do is fight against each other.
Yusho reveals that three years ago he learned of the Arc Area Project and Academia's machinations, going on a journey to stop Leo's plans. Yuri arrives at the You Show Duel School to stamp out the resistance against Academia.
Allen and Sayaka try to fight Kaito only to end up facing Grace and Gloria Tyler, two of Academia's strongest enforcers. Having no choice but to fight, they face off against the Tyler's Amazoness deck.
As Sawatari and Gongenzaka both fail to defeat the Tyler sisters, Yuya and Shun arrive to meet their challenge. In the face of their near perfect combo, Yuya must not give into his rage and defeat his powerful foes.
Yuya and the others try to return to the Resistance base when they are attacked by the Obelisk Force. They try to face the power of the Obelisk Force when Shun becomes gravely injured during the battles.
Academia's enforcer Edo Phoenix challenges Yuya to a rematch. Torn between his allegiance to the Professor and his spirit of Dueltaining, a confused Edo is determined to crush Yuya and the ghost of Yusho that haunts him.
As their duel goes on, Edo only becomes more conflicted of where his allegiances lie. Seeing Edo suffer, Yuya is determined to remind him how fun dueling can be and begins his greatest Dueltaining performance yet.
Convincing Edo, the Tyler twins, and the rest of the forces in Heartland to join their side, Yuya and the other Lancers prepare to head to the Fusion Dimension to find their friends and restore everyone who has been turned into a card.
Yuya encounters his old foe from the Junior Youth Championship, Kachidoki. Kachidoki continues to use violent tactics and powerful Fusions in his Action Duels as Yuya tries to return a smile to his heart.
Yuya and co board a ship to Duel Academy when Dennis catches up to them, aiming to defeat Yusho once and for all. A still vengeful Kaito meets Dennis's challenge as the two unleash their greatest monsters.
Serena, who appeared before the Lancers, suddenly betrays them and captures Yuzu while Yuya is forced to fight Captain Solo. Caught between useless cards and Solo's lock deck, things seem hopeless when more allies suddenly arrive.
Yugo meets with up the others and agree to work together against Academia. Yugo and Kaito head to the towers where Rin and Ruri are being held captive, only to face the guardians Apollo and Diana.
The Doctor has brainwashed Ruri and Rin, leading them to fight against Yugo and Kaito. Meanwhile, Reiji recounts how all of Yuya's counterparts as well as all the bracelet girls are part of Leo's ultimate plan: Revival Zero.
Yuya and the Lancers finally make it the Academy, but they are captured and thrown into a wild battle royale against the Obelisk Force. However, a mysterious enemy in the royale begins wiping out friend and foe alike.
Allie is looking to make a big splash at the Arc League Championship, but she soon finds herself in over her head! Can Allie's deck of fishy friends turn the tides, or will her mysterious opponent sink her chances of winning?
The wild duelist known as Battle Beast crushes his fellow Academy students and even turns Crow and Tsukikage into cards. Yuya and Gongenzaka arrive to face the challenge of their insane foe.
Jack appears out of nowhere and joins Yuya in fighting against Battle Beast. Battle Beast's instructor, Sanders, joins in the duel as well to show the power and glory of the Academy to the Lancers.
Battle Beast continues his rampage against friend and foe alike. Sensing nothing but rage and anger in Battle Beast's heart, Yuya is determined to show him how fun dueling can actually be and aims to purge his demons.
Asuka stays behind to fight Yuri while Sora and the others go on ahead. Yuri uses a different deck and fights Asuka, who tries to reach out a helping hand to Yuri. That's when Yuri reveals the real reason why he does what he does.
Yuya comes across Ruri, who is still under the control of the Doctor's parasites. Yuya attempts to fight off Ruri, made harder when Serena joins the fight. Yuto decides to take control and face the two girls.
Yuya and Yuto are struggling in their battle against Ruri and Serena and their Parasite Queen. The Doctor attempts to take control of Yuya using a parasite as well, but that only awakens the rage inside of Yuya once again.
Leo continues his story about how Zarc destroyed the original world. Leo's daughter Ray used four cards to stop Zarc and split the world into the four current worlds. He then reveals the true nature of Yuya, Yuzu, and the Arc Area Project.
Leo begins his final plan to fuse the dimensions and revive his daughter Ray. Reiji and Yuya team up to take down Leo, with Yuya resolving not to let Zarc be revived. Yusho realizes that even this is part of a larger enemy's plan.
Leo's plan gets further and further to completion, which causes the evil inside of Yuya to emerge once more. Yusho stops the duel and realizes that Zarc's influence is hovering over everything, including Yuya's other counterparts.
Yugo and Yuri being their duel, with Zarc's shared influence forcing them into battle. To stop Zarc's revival, Kaito and Edo join the battle as well to hold back Yuri's powerful Fusion Dragon.
While Yuri and Yugo continue their savage battle, Reira starts hearing the voice of Ray. Aiming to make sure Ray is revived, Reira stands against Reiji and the siblings begin a duel with each other.
Reiji manages to defeat Reira, continuing on to fight Leo. Elsewhere, Yuri absorbs Yugo and aims to defeat Yuya so that Zarc can be completed. Yusho stands in for his son to fight the depraved youth instead.
Yusho's advanced Dueltaining manages to push Yuri into a corner and bring Yuya back to his old self. But Yuri is determined to complete Zarc's revival and has one nasty surprise in store for Yusho.
Seeing his father carded in front of his eyes, Yuya's rage reaches a boiling point as he accepts Yuri's challenge. But not only does he have to contend with Yugo and Yuri's dragons, but Zarc's ever growing influence over him.
The four dimensions start to fuse together as Yuya continues to struggle against Yuri. Forced to discard his trump card, things seem hopeless. Yuya's friends then arrive to encourage him to keep fighting no matter what.
Yuya absorbs all of his counterparts and reclaimed his true form as Supreme King Z-ARC. Starting to lay waste to the Fusion Dimension, Sora and Edo challenge Zarc to try and reach out to Yuya's spirit.
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?
