When Bakugan suddenly emerge from the earth, Dan and his friends are thrust into a new era. No longer just ordinary kids seeking fame, they must master the art of battling alongside their Bakugan to fend off various threats aiming to manipulate or destroy these enigmatic alien beings. Through safeguarding their Bakugan and defending Earth, Dan and his comrades morph into true heroes as they unravel the astonishing revelation that our world has merged with the sentient planet Vestroia lying beneath us.