Bakugan Mechtanium Surge Episode 18 Battle Lines Episode Title:Battle Lines.Episode Description:The episode begins with the Gundalian soldiers fighting back against the Chaos Bakugan. It seems that the Chaos Bakugan are defeating a huge amount of Gundalian Bakugan. The Gundalians then try to get revenge on the Chaos Bakugan and are starting to gain the upper hand but suddenly, all of them are all defeated by a Aquos-Darkus hybrid Cyclone Percival and a Pyrus-Darkus hybrid Iron Dragonoid owned by Sellon and Anubias. When they finished off the Gundalian's Bakugan, Anubias wondered where Dan is. Back at the base in Gundalia, the battle brawlers find out that the Chaos Bakugan are all heading to the city area, where there are Gundalians defending the area such as Mason and Jesse from Gundalian Invaders. Ren concludes that they are properly heading to Neathia so they can invade them next, as there is a Dimension Transporter in the area. They also think Mag Mel is hiding underground in his castle while he commands the Chaos Bakugan to attack Gundalia. Paige is eager to initiate a sneak attack but Captain Elright reminds her how the previous attempt ended. Dan insists to fight against Mag Mel but Marucho tells him not to, calling him a liability. Dan gets extremely frustrated and grabs Marucho by the collar and yells at him, that he has saved him over the past few years. He didn't stop until Rafe told him that it was enough...