The heroes are in trouble after they have just discovered amazing new equipment, and they are eager to record a video demonstrating its power. But the problem is that this equipment was only shown to Dan and Drago, which aroused the jealousy of the rest of the heroes and threatened to disintegrate...Read more the team.
Several months after defeating Haavik, Dan and his friends return to their normal lives, and the Bakugan go into hibernation, before Dan finds himself in a new battle, and Drago appears out of nowhere to turn the balance of power.
In season 4, Drago returns to Earth, and he and Dan set off to confront a strange energy wave coming from Vestroia, and they decide to stop it before it destroys the planets of humans and Bakugan.
Dan and Athena travel to Vestroia after discovering a weak link between Earth and Vestroia. They soon discover that a group of small Bakugan known as The Swarm is absorbing Earth's energy. Faced with this danger, Magnus leads a team during the mission.