Dan is the main character of the third season of Bakugan, Gundalian Invaders. His Guardian Bakugan is still Helix Dragonoid, and he has the Battle Gear Jetkor. Marucho, Shun, and Dan first meet Ren in Bakugan Interspace. In Bakugan: Gundalian Invaders, Dan has just move to a new town and made friends with Jake.
In episode 1, Dan brings Jake to Bakugan Interspace and brawls against Ren Krawler. He and Marucho later battle two Gundalians, Sid Arcale and Lena Aisis. Marucho lost, but Dan and Drago beat both of them.
When Fabia Sheeze arrives, she brawls Dan and loses. Believing Ren Krawler's story about Neathians attacking Gundalia, Dan tells Fabia to leave and to stop using Bakugans for war. Angered by his ignorance, Fabia throws Dan and leaves.