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| class="description" colspan="5" style="border-bottom:3px solid #CCCCFF"|With Razenoid's Catharsis complete, Mag Mel decides to put all the humans into the dark reverse dimension of Earth to torture them. Meanwhile, the Dark Moon sends out energy waves which transfer all the non battlers to the reverse dimension. He also summons six different attributed Razen Titans to the six biggests biggest cities on Earth to drill holes into the Earth's core which will result in the Earth blowing up. He then appears in the sky as a vision to all that he will do the same to all opposing forces including Gundalia, Neathia, Vestal, and New Vestroia. The Brawlers decide to split up and hunt down the Mechtogan Titans but this proves not to be simple as there are armies of Chaos Bakugan and Dreadeon Clones as protectors. The grand battle begins with the Brawlers summoning their Mechtogan, Dan with Rapilator and the addition of Drago, Zenthon, and Zenthon Titan defeating the first one, and Shun who summons Faser Titan and defeats another one. As the battle continues, Rafe with Wolfurio and Paige with Boulderon are having difficulty but then, the Vestal Destroyer arrives with Spectra Phantom, Infinity Helios and Gus Grav on the bridge. He then comes to assist them and they defeat another Razen Titan. After this, he with Dan and Shun then come together to face three more Razen Titans.

| class="description" colspan="5" style="border-bottom:3px solid #CCCCFF"|A long time has passed since Mag Mel and Razenoid were defeated, and Earth, New Vestroia, Vestal, Gundalia, and Neathia were emptied of all the Chaos Bakugan. Everyone has returned home, including Spectra, Gus, Paige, Rafe, Taylean, and Trister. As soon as everything turned back to normal, Mira arrived and brought her advanced Vestal technology to aid Marucho and the Marukura Corp into making the Bakugan Research Center, which is now the Bakugan Battle Brawlers HQ. Now that the Interspace is gone, the Marukura Corp and the Vestal scientists were able to create a new home for brawling in replacement of [http://bakugan.wikia.com/wiki/Bakugan_Interspace [Bakugan Interspace]] known as Bakugan City. Once word got out about this place, all Bakugan from New Vestroia partnered up with humans and are now living there. Shun and Marucho have new partners as well: Ventus Jaakor and Aquos Radizen, while Dan is still partnered with Drago, now evolved into Fusion Dragonoid. The three of them and their new rival, Gunz Lazar, a Haos battler partnered with Haos Reptak, are the semi-finalists in the current Bakugan tournament. After Gunz defeates Marucho and Shun loses to Dan in the semifinals, the final round commences. Dan and Gunz's battle is soon interrupted, however, by the arrival of four mysterious Mechtogan: Coredegon, Slycerak, Exostriker, and Mandibor, who have come from the Doom Dimension after killing their creator, Fury. The Mechtogan, declaring that their goal is to end all harmony between humans and Bakugan, begin to lay waste to the stadium. Gunz, Marucho, and Shun are quickly defeated, and while Drago does put up a fight for some time, the Mechtogan gain the upper hand once more by combining into Mechtavius Destroyer. Dan and Drago suddenly manage to summon a Mechtogan of their own, known as Dragonoid Destroyer, and they use it to defeat their enemies. Mechtavius Destroyer is split into its component parts, which are banished to the Doom Dimension again, swearing vengeance. As the Brawlers rejoice, a mysterious, masked figure with Gunz's hair is seen standing up from the rubble.

| class="description" colspan="5" style="border-bottom-width: 3px; border-bottom-style: solid; border-bottom-color: rgb(204, 204, 255); text-align: left; "|After [http://bakugan.wikia.com/wiki/Shun [Shun]] tells his story about what happened in his battle with [http://bakugan.wikia.com/wiki/Wiseman [Wiseman]], the other [http://bakugan.wikia.com/wiki/Bakugan [Bakugan]] pressure [http://bakugan.wikia.com/wiki/Radizen [ Radizen]] when he is going to be able to combine. Radizen has become upset because he is unable to have a combination, he is approached by [http://bakugan.wikia.com/wiki/Roxtor [Roxtor]] but ignores him. He is later taken by [http://bakugan.wikia.com/wiki/Marucho [Marucho]] who tries to cheer him up. While on their way to the power plant Mira hides in the back of Marucho's air carrier to help Marucho and Raidzen patch things up. After listening she talks to Roxtor stating that she didn't have to come at all. Marucho and Raidzen are confronted by Wiseman and they battle against his Bakugan, Radizen is able to hold his own and beat the two, but when they combine he has a hard time. Radizen then fuses with Roxtor and is able to defeat them in battle.

| class="description" colspan="5" style="border-bottom-width: 3px; border-bottom-style: solid; border-bottom-color: rgb(204, 204, 255); "|The episode begins with [[Kato]] checking that all the Brawlers are asleep except Mira who is working on Battle Suits for the Brawlers Bakugan. The next day Julie and a camera man arrive at the HQ for an interview report. She then asks Dan,Marucho and Shun questions about Wiseman. Mira then enters saying she has finished the Battle Suits but before finishing explaining about their Battle Suits she faints but Dan catches her. She later wakes up in front of the Brawlers, Dan says to rest and she gets upset, Kato then asks her to call him if she needs anything but she then stops him and asks him a favour. The Brawlers are then sitting down when Kato then tells Marucho that he is going to get Mira something and leaves in [[Marucho]]'s ship. Between this time [[Wiseman]] and [[Betadron]] talk about re-summoning [[Coredegon]] and the others. They later appear in a park and Julie get's a call from her boss saying that Wiseman is back and she later hides in a bush whilst the Brawlers confront Wiseman. The Brawlers seem to be gaining the upper hand until the Nonet Bakugan generate enough energy to summon the Mechtogan to fight the Brawlers. They soon integrate into Mechtavius Destroyer and the Brawlers combine into Betakor and Magmafury but are defeated and Dan is knocked out. Kato is soon arriving with someone the Brawlers know well. [[Shun]], Marucho, [[Reptak]] and [[Drago]] try and fail to wake up [[Dan]] but soon after a voice wakes him up Dan then realizes its [[Runo]] who Mira told Kato to go get because she knows Vestal Technology and sends the Battle Suits to the Brawlers. The Brawlers then gain the advantage and beat the Nonet Bakugan and Mechtavius Destroyer.

| class="description" colspan="5" style="border-bottom-width: 3px; border-bottom-style: solid; border-bottom-color: rgb(204, 204, 255); "|After Wiseman revealed himself to be Coredegon, Coredegon is about to blast Drago into oblivion but the Nonets come to the Brawlers' aid. They are, however, quickly defeated by Coredegon. The battle gets more fierce as Gunz learns from Wiseman/Coredegon that he copied Gunz's appearance by absobing absorbing his evil energy and reverting it. After that, the Nonets are told that he will give them two options, while transforming to his true Mechtogan form, they must choose to either return to the Doom Dimension or be buried alive. Meanwhile, in the battlefield, the Brawlers summon Flytris, Dragonoid Destroyer, and Thorak, as well as creating their combinations Aeroblitz, Magmafury, and Betakor, while the four rogue Mechtogan combine into the deadly Mechtavius Destroyer. The battle is fierce, but eventually, the Battle Brawlers and Dragonoid Destroyer lose. Mechtavius Destroyer reveals that he will not be satisfied if he destroys the Battle Brawlers now, so he chooses to extend their suffering by sending them to the Doom Dimension. In the cave, Betadron saves Gunz, who agrees to be the Nonets' battling partner, except for Worton, who chooses to return to the Doom Dimension. Gunz then puts on Wiseman's helmet and a flaming red energy covers his entire body and turns him into a new Wiseman. His red suit, according to Betadron, changed its color to reveal all his inner fire. They arrive to confront Mechtavius Destroyer just as Gunz sees the Brawlers being sent to the Doom Dimension by Mechtavius Destroyer, letting their fate unknown.

| class="description" colspan="5" style="border-bottom-width: 3px; border-bottom-style: solid; border-bottom-color: rgb(204, 204, 255); "|After Mechtavius Destroyer destroyed Bakugan City with his full powers, he goes to New Vestroia to destroy all the Bakugan there, but his plan was interrupted by the Brawlers' Bakugan from past seasons. They tried to defeat Mechtavius Destroyer, but they are defeated because of his strong power. Back in the Doom Dimension, Worton tells the Brawlers about the Current of Time, which he discovered by himself when he goes back into time and tells Balista to untell tell Wiseman the secrets about him in attempt to save his life. After, the Brawlers go into the Current of Time to get out of the Doom Dimension. As the current is about to get very strong, the Brawlers' memories was seen including Betadron who sees the fate of the Nonets when they were crushed by the Mechtavius Destroyer. Also, the Brawlers have seen the destruction of Bakugan City and New Vestroia and seem that he wiil also destroy Vestal, Gundalia and Neathia. After that, Worton and Betadron sacrificed themselves so that the Brawlers go to the Mechtavius Destroyer for the final battle. Successfully getting out of the Doom Dimension, the Brawlers told Mechtavius Destoyer that he will be defeated this time, and the final battle begins!