16화: 댄이 드래고와 메크토건 젠톤과 함께 카오스 바쿠간과 맞서 브롤러들을 돕기 위해 바쿠간 인터스페이스로 돌아온다.

16

Dan finally returns to Bakugan Interspace to help the Battle Brawlers in their battle against the Chaos Bakugan with his friends and Drago battles Anubias's Horridian, Bolcanon, Krakenoid, Sellon's Krowl, Spyron and Vertexx, while he is able to weaken them in the progress. While Drago is battling, Spectra Phantom and Infinity Helios were impressed of Drago's new power. Also, Rafe and Paige were scared about how much power that Drago had. Later, when Dan says to Drago that he should finish it, Drago summons Mechtogan Zenthon but Marucho and Shun were worried that Zenthon might destroy the place and also the Brawlers too. Zenthon and Drago start defeating a whole bunch of Chaos Bakugan but then, Dan suddenly has a vision of Mag Mel which causes Dan and Drago to go out of sync and they are unable to control Zenthon and he starts attacking Bakugan Interspace. Zenthon also defeats Marucho's Infinity Trister, Rafe's Wolfurio, Paige's Boulderon, Spectra's Infinity Helios and Shun's Taylean in one blow and they all turn back into their ball form. Later after that Zenthon disappears and Anubias summons BakuNano Aeroblaze, BakuNano Hyper Pulsor, BakuNano Daftorix, BakuNano Slicerix, BakuNano Jamsaber and BakuNano Orehammer for Team Anubias' Bakugan and Team Sellon' Bakugan. Drago is then defeated by all of them due to being a six on one fight and they had BakuNano's but when Dan was about to throw Drago back into the battle, Marucho stops him and sends back the brawlers alongside Dan into the interior of Bakugan Interspace. Marucho then deletes Area B and all of the Chaos Bakugan are deleted. Spectra was really disappointed and sad about Dan's attitude and decides to leaves the Brawlers temporarily. Meanwhile, Shun believes that Dan has no right to boss them around again due to him leaving. Dan then tells them he went to train at New Vestroia and they were all shocked. Dan also said all their training paid off but Paige and Rafe didn't believe them because they weren't able to control Mechtogan Zenthon. Drago then tells Dan they should tell them the truth and he does. He tells the Brawlers about the connection he has with Mag Mel and Razenoid and they will have to decide if they should take him in again after he abandoned them. Rafe and Paige seem to be disappointed about Dan's attitude towards Marucho, after he knew that he was the leader while Dan wasn't with the Brawlers and they decide to acknowledge Marucho as the leader. Dan later leaves after Marucho yelled at him and Shun also leaves talking to Taylean about Dan and he bangs a wall. In other point, because of Titanium Dragonoid's Mechtogan, Zenthon, Mag Mel and Razenoid finally have enough power to get free. They destroy their chains and a castle comes out of the ground on Gundalia. Razenoid also spawns a whole bunch of Chaos Bakugan and Mag Mel then commands his Chaos Bakugan to attack the place. That night, in Dan's house which is located in Bayview, he sees a vision of Gundalian Soldiers trying to hold off the Chaos Bakugan. The next day, Marucho, Shun, Rafe and Paige were talking about the Chaos Bakugan disappearing and Marucho didn't buy it. Dan then arrives and tells the Brawlers' about Gundalia, which surprised Paige because her homeland was attacked by the Chaos Bakugan but they all didn't believe it and Paige said: Why should we believe it?, then she said Dan was a crazy person. They then believe Dan when Paige receives a message from a Gundalian. Paige then says that he has to go to save her people but Marucho says that the brawlers and himself will come too. Dan offers to go with them to Gundalia, but she and the Brawlers say no; however, Dan said he has to go because he's the original brawler and this fight involves him too. (Source: Wikipedia)