Matter of the Mind is the thirty-first episode of Bakugan Battle Planet.
Drago leads the Bakugan against the threat of Tiko to protect a powerful energy source.
The Awesome Ones start to get closer to the immense power and find yet another gate, this time in a fluffy, cloudy area that they can stand on. Lia tells them that they are glad they didn’t run into the “scary Bakugan” from earlier, but Dan gives it a name - “Bakuzon”, a Bakugan Zombie. Drago talks about the golden dragon Bakugan that can take over Bakugan with its black substance, Drago says he never felt afraid, he felt like there was danger when he saw it.
The AO Bakugan look around the area, with Drago staying to watch over the others. The Awesome Ones fall asleep, likely because they’ve been walking so long - the other AO Bakugan do so too while Drago stays guard. The golden phoenix Bakugan appears and flies over the AO, the Bakugan in closed ball starts to move into a hole, Drago turns back to ball form to get into the hole to follow his Bakugan friends. Drago finds the dark golden Bakugan once again, who is trying to get into a building. Drago tells everyone to wake up to fight the evil Bakugan when he tries to attack, he fails, and the evil Bakugan uses his black substance attack to possess the Awesome Ones Bakugan, with exception of Drago, Lupitheon, Vicerox, and Gorthion. Dan and the others are woken up by the noise underground, Dan spots Drago and the others in trouble, yelling out for help, which Pyravian (the golden phoenix Bakugan) uses its power to help them go through the clouds into the cave.
Dan and the others see the evil dark golden Bakugan for the first time, the one controlling the Bakuzon. Drago asks Dan to find a BakuCore to help him fight the possessed AO Bakugan, the phoenix Bakugan uses its power to create a field where BakuCores start to appear. The evil dragon Bakugan grabs Drago by the neck, and Dan notices a golden BakuCore and throws it to Drago. The power of the BakuCore slices through the dark goo, Drago uses a powered up Twisting Inferno to finish off the evil Bakugan, who disappears. As a result, the possessed AO Bakugan are back to their normal selves. Drago then notices that they have finally found the place they’ve been heading all this time, the Bakugan go towards a building and find a Core Cell.
- The Awesome Ones vs. Bakuzon Awesome Ones Bakugan and Tiko = The Awesome Ones win