Evil Arrival.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, Tristar, Boulderon, Wolfurio, Helios and Vulcan. 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 Headquarters. 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 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. That's not all, the Brawlers are still #1 with their new partners, like the rockin' hardcore ninja tag team of Shun and Ventus Jaakor. Next is the awesome smack talking but smart tag team of Marucho and Aquos Radizen. Finally we still got the ultimate brawlers, Dan and Pyrus Fusion Dragonoid. The first season of the Neo Bakugan City Tournament is about to end with the top 4 brawlers, Dan, Shun, Marucho, and Gunz Lazar battle it out. Julie is also back as the new announcer for battles, including her rule (to avoid danger) of no Mechtogan during battles. Marucho, although making a top notch scientific plan to take down Gunz and his Haos Reptak, Marucho and Radizen lose. Next up is the long awaited brawl between Dan and Shun, with Dan mimicking Shun and Jaakor's ninja style of brawling to win the match...