BAKUGAN BRAWLERS JOIN FORCES WITH ALL NEW MECHTOGAN TO SAVE THEIR UNIVERSE!
A year has passed since the Bakugan Battle Brawlers defeated the Twelve Orders and Emperor Barodius. Peace has returned to Neathia and Gundalia. The "Grand Prix Bakugan Tournament" finds Dan and the Brawlers challenged for their title as the number one battlers! But all is not what it seems.
Unknown to Dan and Drago, their exposure to Code Eve and the Sacred Orb in the final battle on Neathia has infused them with powers they are unable to control! This energy has unleashed a powerful force in the form of Mechtogan! Dan, Marucho and Shun must unite once again as they battle with their combined strengths to overcome a powerful enemy who is unleashing an army of dark Bakugan who threaten their Universe!