Bakugan Battle Brawlers (2007)

Season 1: Episode 50

Dan and Runo stand as the only defenses against Centorrior and Druman. As Dan recalls his past battle with them, he realizes they don't have a chance without help. Julie, Billy, Marucho, Klaus, Julio, and Komba also get involved in the battle due to Hal-G doing a blurred transmission by Hal-G posing as Kato. Elsewhere Alice stands ready to help her grandfather, Hal-G, who appears to have fully become himself again. She takes him where Joe and Wayvern are. It's all a trick though. He unleashes Naga. Shun has suspected a trap though, so he shows up and fights Naga. When Joe gets captured, Chan-Lee frees him and joins the cities last line of defense by unleashing Fortress. While Drago is stuck battling the last of Naga's servants, Wayvern is in great distress.