The Brawlers' reign as number one in Bakugan Interspace is ended by two new powerful teams: Team Anubias and Team Sellon. To make matters worse, Dan and Drago continuously suffer from visions sent to them by Mag Mel and Razenoid. These cause them to lose fans rapidly when Drago loses control in battle several times, threatening the lives of all the children in Interspace. Shun and Marucho find themselves unable to help as Dan is keeping everything to himself. When Dan loses control once again and nearly kills Anubias in battle, all of Dan's fans abandon him and he leaves for New Vestroia to train. Shun, meanwhile, takes the reins of leader of the Battle Brawlers and charges himself with the task of returning the Brawlers to their former glory. He becomes more and more uncaring and brushes off all opinions but his own while Marucho tries to help him be a better leader. Paige and Rafe show up to learn from them, but find them in disarray. Meanwhile, Dan and Drago fix their problem and prepare to come back. Eventually, Dan controls Drago's powers as Marucho and Shun reunite and join up with Paige and Rafe. When the Chaos Bakugan start destroying Interspace, Spectra appears out of nowhere to help the Brawlers out and destroys many of the Chaos Bakugan. Afterwards, Dan returns, but is out of sync and accidentally defeats his fellow brawlers with Zenthon. He tells them later about Mag Mel (Spectra left beforehand, disappointed in Dan having changed). Shun walks out and dismisses Taylean's words. Dan later has a vision (which is true) about Gundalia being attacked by Mag Mel (who is now free). Dan arrives and tells them about Gundalia, which Paige confirms unexpectedly. The Brawlers dismiss Dan and don't let him go, but Dan says somewhat angrily that he's not asking; he's telling them that he is an original brawler and isn't gonna be cut from this fight. They let him come along and save Ren's home world.