Seasons & Episode
In the upgraded GBN, Hiroto continues to play as a solo mercenary. He is greeted by a Diver named Kazami, who suggests that they team up. Hiroto flatly rejects the idea, but Kazami appears undeterred. His goal is to attempt a rumored hidden mission.
The Build Divers have accepted a mission to protect Freddie's village. In their rehearsal battle, however, they realized that their poor teamwork will inevitably result in collateral damage. Hiroto proposes a secret plan that will enable them to clear the mission without harming the village.
On the day of the operation, Parviz is late to arrive. Lamenting his previous incompetence, he tells the other Build Divers that he wants to quit. Kazami desperately tries to stop him, May is calm, and Hiroto is excessively realistic. Parviz remains determined, but then he is forced to begin the mission against his will.
While Parviz experienced great growth in the previous mission, Kazami alone is resentful at his own inability to distinguish himself. Meanwhile, the Build Divers head for the Resistance base where Freddie's brother Jed is stationed.
Though Gojo has asked him to look after Kazami, Hiroto is unable to figure out Gojo's real motive. And Kazami, unable to find a way to lessen the huge gap between his own ideals and his current state, can only agonize in vain. With their teamwork in this hazardous state, an escort and evacuation begin.
May's Wodom Pod has been destroyed while shielding Hiroto from an attack, and from it emerges May's mobile doll form. May is an EL-Diver, an electronic lifeform born from GBN itself. As the other Build Divers react with amazement, Mobile Doll May takes the offensive against the Gundam Seltsam.
After a mutually frustrating conversation with the entity that calls itself Alus, the Build Divers temporarily withdraw from the moon. Awaiting them are a tremendous number of One-eyes, which appear to be led by the Gundam Seltsam. Then Hiroto and the others are shocked by another new development.
Freddie, an inhabitant of the planet Eldora, sets foot inside a ruined temple, carrying with him a book he accidentally discovered in a storage room. His curiosity leads to an encounter with Hiroto and the other Build Divers, and nobody could imagine what will result from this beginning...
Once again, Hiroto and the Build Divers make contact with Freddie and stand on Eldora's soil. Their sense that the planet Eldora really exists, and isn't just a GBN Story mission, is reinforced. But meanwhile, where their Gunpla are concerned, they must deal with a situation dramatically different from before.
Riding in a balloon made by collecting the lanterns from the Space Crossing festival, Parviz and Freddie go to meet the sacred beast Cuadorn, which dwells in the floating temple known as Milaag Mountain. Buffeted by strong winds, the balloon continues its ascent, but ahead of it lies a huge thundercloud like nothing they've never seen before.
Hiroto and the Build Divers have finally met with the sacred beast Cuadorn, only to be rejected. But after they unflinchingly convey their feelings towards Eldora, Cuadorn opens its silent mouth. As it begins to speak, it tells them of the lightning from the moon that struck Eldora, and of Alus, the one who unleashed it.
Their battle with the Alus Earthree Gundam has ended in victory for Hiroto and the Build Divers. In front of its wreckage are the Earthree Gundam and the Beam Shoot Rifle U7, which has been thrust into the ground. As Hiroto stares at the rifle which looms like a gravestone, a buried memory is revived within the depths of his heart.
Once again, Hiroto and the Build Divers gather in real life. To save the people of Eldora from the One-Eyes, they must power up their Gunpla to resist the powerful new enemies created by Alus, and discuss how to rescue Masaki Shido, whose mind is still trapped on the planet Eldora. Then Parviz makes a surprising proposal.
Muran has entrusted Hiroto, Kazami, and May with the task of rescuing Masaki Shido, and they begin searching for the Seltsam. However, their radar instead detects a huge force of dozens of enemy machines. Meanwhile, in the ruins of Milaag, Parviz and Freddie continue working to repair Cuadorn's injured wings.
Thanks to the efforts of Hiroto and the Build Divers, Masaki Shido has been successfully rescued. Hiroto, Kazami, Parviz, and May gather at The Gundam Base to pay a visit to the awakened Masaki. Suddenly, they hear the roar of a motorcycle engine. The rider is someone they never expected.
After successfully completing their rehearsal mission in GBN, Hiroto and the Build Divers gather at Milaag Mountain and prepare for battle. Suddenly, one of the summoning pedestals begins to glow, and another Diver forms from the Eldorium mirror sand.
The Gunpla Force Battle Tournament is a big event held in GBN once per year. Competing in the final round are Avalon, led by the champion Kyoya Kujo, and the elite 7th Panzer Division led by the cunning Rommel. Starting with Kyoya's Gundam AGE II Magnum, a variety of Gunpla take to the field to determine which is the strongest force!