It's an all new adventure for the Bakugan Battle Brawlers when Dan's family moves to Bayview City and Marucho's Bakugan Interspace becomes fully operational to everyone, allowing kids all over the world to log on and display their battling skills. Dan has a vision of Bakugan at war each other, something which everyone, except Ren, brushes off as a hallucination.

Dan continues to be haunted by the visions he saw while unconscious after an explosion during battle. Meanwhile Marucho notices that Ren is also behaving strangely.

As Ren identifies three more Neathian moles , Princess Fabia from Neathia arrives in Bakugan Interspace looking for the recipients of the message she sent. Dan, having slept in, rushes to Bakugan Interspace and runs into Fabia, literally. Fabia learns that he is the top brawler in Bakugan Interspace and suspects she may be a Neathian spy.

Dan is in the midst of training Jake in the battle arena with hopes that he will soon be skilled enough to become a member of the Battle Brawlers.

With the Neathian moles making themselves known, they begin kidnapping brawlers from Bakugan Interspace.

The other Brawlers get together with Ren, who reveals the identities of more of the Neathian sleeper agents.

When his search for Ren turns up empty, Marucho uses a secret distress call to lure him out of hiding.

When the Brawlers discover that the Gundalians are inside Bakugan Interspace "recruiting"/kidnapping more battlers to join their cause, they race to the scene to confront them.

Now that Ren has taken over control of Bakugan Interspace, the Brawlers discover that they can no longer enter the virtual realm via the usual access points.

With Ren and the Gundalians now in control of Bakugan Interspace, Marucho determines that the security system preventing the Brawlers from diving in is being run out of the secure "Baku-Room".

When the invading Gundalians breakthrough the outer shield, Neathian Castle Guard Linus flees to Earth in search of Fabia.

In an attempt to get Neo Zipzam back before the Gundalians realize he possesses the Element, the Brawlers infiltrate Bakugan Interspace and walk into the middle of a Gundalian power struggle.

Given a brief pardon by Barodius after his earlier failure, Ren hatches a plot with Zenet to regain possession of the Element.

The Brawlers arrive at Neathia and meet Fabia's sister Queen Serena. With her blessing, Fabia takes her new friends to see the Sacred Orb, a source of great power that is hidden deep inside a mountain.

With only one remaining security shield protecting Neathia from the invading Gundalian forces, the Brawlers hatch a plan to reinstate a previously destroyed shield.

Dan, Fabia and Shun continue to make their way through the jungle to the shield generator building, when Stoica and Jesse suddenly ambush them.

Having made it to the Generator Building, Shun and Drago find themselves up against an army of Gundalian Guards, as they attempt to restart the Second Shield.

With the Second Shield back up and running the Brawlers help the Neathians rebuild their strongholds. Frustrated that they are losing momentum, Jake strikes out on his own in search of more Gundalians to fight.

When Mason flees his Gundalian ship, Nurzak and Ren are soon in pursuit as they attempt to apprehend him before the Emperor learns of the escape.

Fearing that her life may be at risk, Zenet morphs into a doppelganger of Ren in order to accompany Gill on a mission to destroy the Second Shield.

On the eve of the revolt against Barodius, Nurzak sends a message to the Brawlers asking to meet and discuss a peace treaty.

While Kazarina works on a secret weapon designed to take down the restored Second Shield, the Gundalians dispatch their army of hypnotized Earth kids to distract the Brawlers in battle.

As Ren prepares to launch an attack on the restored Second Shield, something strange is happening deep within the bowels of the Gundalian Palace.

Once Kazarina finally completes the upgrades on Exokor, the Twelve Orders descend on Neathia to take down the restored Second Shield.

Ren's conflicting loyalties finally come to a head when he decides to turn his back on Barodius.

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.

No description available.

Distraught over the loss of Jake to the Gundalians, Dan tries to mount a rescue operation to Gundalia.

Desperate to rescue the still hypnotized Jake from the clutches of the enemy, Dan rallies the Brawlers to go after their pal.

The Brawlers hitch a ride to Gundalia on Dragonoid Colossus. Once they arrive, Ren announces that in addition to Jake, he would also like to rescue his former teammates who are being held captive in Kazarina's lab.

After getting separated from his teammates, Dan finds himself face to face with Barodius. Immediately they engage in a fearsome battle, which Drago quickly winds up on the losing end of.

After infiltrating Gundalian Castle, Nurzak and Fabia quickly square off with Kazarina and Stoica.

Disguised as a Gundalian Soldier, Marucho and Akwimos infiltrate a troop briefing and are surprised to discover that it's being lead by Jake.

As the Brawlers break into the Gundalian's lair, they run into all kinds of trouble. Jake seems to be regaining control as he does not destroy Dan when given the chance to. Will he save Dan and snap out of his trance?

Just as Kazarina is about to finish Dan off, Jake breaks free of the hypnosis and stops her. Fabia arrives and holds off Lumagrowl while Jake and Coredem rescue Dan and Drago.

The brawlers must head back to Neathia to defend it from Dharak's attack but Kazarina, Stoica, Gill and Airzel are determined to keep them on Gundalia. The brawlers manage to fight them off and escape, but Fabia remains behind to fight Kazarina, as she has a vendetta against her for the death of her fiance, Jin.

Just as the Brawlers return to Neathia, Fabia and Kazarina continue their battle. However, Lumagrowl begins disobeying Kazarina's orders and is determined to finish off Aranaut with or without her.

Barodius confronts Serena, who refuses to back down. Barodius prepares to attack her, but Dan arrives in time to stop him. However, the Sacred Orb teleports them to an unknown area and reveals itself to be called "Code Eve."

Drago struggles against Dharak, and is knocked out and reverts to a primal state, relying solely on instinct, but Dan manages to snap him out of it.