Ep. 8: Ren kidnaps brawlers and brainwashes them to attack Dan's group while taking control of BI.
Following his conflict with Ren, Marucho feels refreshed and creates a speech program for the clone Akwimos. Fabia fears Dan and the others distrust her due to being tricked by Ren, but Dan reassures her of their complete trust after witnessing her anger over Bakugan being used for war. Relieved, Fabia provides Shun, Marucho, and Jake with the real Hawktor, Akwimos, and Coredem. Meanwhile, Ren leads other Gundalians to kidnap brawlers Taylor and Casey, taking them to Gundalia where they are brainwashed to fight against the Neathians. Dan and the others confront Ren, who sends Taylor and Casey to attack. Dan and Shun battle Mason and Taylor, while Marucho and Jake fight Sid and Casey. Fabia sneaks away to find Ren and uncover his plans. After winning their battles and freeing Taylor and Casey from Gundalian control, they are forced out of BI. Ren reveals he now holds sole control of BI.
Episodes
- Ep. 4 · Jake proves himself by defeating Mason Brown to become an official Bakugan Battle Brawler
- Ep. 5 · Neathian moles kidnap brawlers while Sid and Zenet face recruitment issues
- Ep. 6 · Fabia loses to Jesse due to a field bug, leading Shun and Fabia to expose Ren's lies about Neathia and Gundalia.
- Ep. 7 · Marucho searches for Ren while Fabia explains Neathia's fall to Gundalia.
- Ep. 8 · Ren kidnaps brawlers and brainwashes them to attack Dan's group while taking control of BI.
- Ep. 9 · Dan and Jake infiltrate Bakugan Interspace to rescue brainwashed children from Ren's control
- Ep. 10 · Marucho and Fabia infiltrate Bakugan Interspace to rescue Ren from Barodius's control.
- Ep. 11 · Linus delivers the Element to Fabia while battling Ren and Jesse on Earth.
- Ep. 12 · Dan and Linus struggle to rescue Neo while Sid steals him for glory.