第 15 集: 戰鬥者們在爆丸谷尋找無限核心，並遇見比利和康巴。

15

Dan and the brawlers arrive at Bakugan Valley and meet up with Julie and Gorem. Once there the brawlers begin their search for the infinity core and a door to Vestroia, after being chased by bats and scorpions through a cave Dan and the others find behind a door, a path to Vestroia. Through the power of their bakugan Dan, Shun, Marucho, Runo and Julie are shown what Vestroia's current state is as well as their respective bakugan's attributed homeworld. After fleeing from the cave which began to collapse on them, they encounter Billy and Komba who challenge the brawlers to a battle. Shun and Julie accept and the battle begins, with the brawlers learning that Billy and Komba work for Masquerade. The battle becomes intense as both Julie and Shun lose bakugan leaving them with only Gorem and Skyress, after defeating Billy's Cycloid and Komba's Harpus the battle finally ends with the brawlers winning. Although Julie tries to snap Billy out of the hypnosis, he and Komba remain under Naga's control while vowing to take the Brawler's partner bakugan. The episode ends with Julie crying over Billy's actions. (Source: Wikipedia)