Forgiveness
When the Brawlers are transported back to the Royal Palace, Ren is nowhere to be found. They learn that the Third Shield has been outfitted with a Bio-Filter that prevents anyone with Gundalian DNA from passing through.
Aired 16/10/2010EP 26 - Forgiveness
2010
Bakugan: Gundalian Invaders
Dan, Marucho, and Shun get caught up in a war between two different alien factions in another universe, and teaming up with three new brawlers: the Neathian, Fabia, the new human, Jake, and the Gundalian, Ren, in order to stop the evil Gundalian Protectors, the Twelve Orders from destroying Neathia, and possibly, Earth. They meet these people by them entering through the virtual reality Bakugan Interspace. The stakes are high! Will the Battle Brawlers triumph, saving the Bakugan once more?
(Source: Bakugan Wikia)