Setsuna begins a final decisive duel. Lyle's intentions, Allelujah's hopes, and Tieria's thoughts flow through the darkness of space. The particles from the 00 Raiser envelop the area around them.

As Tieria enters the enemy ship and learns shocking truths, the Ptolemaios 2 fights a defensive battle against the unrelenting enemy assault. One by one, our heroes fall. Setsuna cries out as if responding to the fading light of their lives.

The year is 2312 A.D, five years after the first appearance of Celestial Being, and four years after the organization was destroyed by the United Nations forces.

The A-LAWS and Federation Forces are gathering a huge fleet to exterminate Celestial Being, and their leaders anticipate a final decisive battle.

The Ptolemaios 2 has received a message containing coordinates for a point at Lagrange 5. The crew are suspicious, but Setsuna suggests they set course for this mysterious location.

The A-LAWS prepare a new trap for the reborn Celestial Being at a detention center for anti-government elements.

Sumeragi has regained consciousness, and thanks to her tactical plan the Ptolemaios 2 is able to escape the battlefield. However, Allelujah's Gundam has been shot down along with Soma Peries, and his comrades cannot locate him.

The Innovator Regene Regetta finally rebels against Ribbons Almark.

As Saji Crossroad searches for Louise Halevy amid the chaos of battle, Soma Peries hunts for Andrei Smirnov in order to avenge Sergei's death. Setsuna confronts the Innovator Hiling Care and unleashes the power of the Twin Drive.

The Innovator Revive Revival is now a prisoner aboard the Ptolemaios 2, but he sneers at the questions of its crew, and gives them nothing but evasive replies. Suddenly, the crew receive word that crewmember Mileina Vashti has been taken hostage.

With the reappearance of Celestial Being, the A-LAWS begin gathering personnel who have experience fighting the Gundams.

Four months have passed since the "Break Pillar" incident, the near-collapse of an orbital elevator. The A-LAWS leaders receive word that Celestial Being has resumed activity after months of silence.

The Katharon space fleet has begun an assault on the satellite weapon Memento Mori, and is now under attack by A-LAWS mobile suits.

The Ptolemaios 2 attempts to make a hasty escape from the attacking A-LAWS. But the Gundam Meisters are hard-pressed by Kati Mannequin's tactics and the enemy's new mobile suits.

A crisis is unfolding, but the Ptolemaios 2, which has not yet been fully repaired, is unable to break the deadlock. The wounded Setsuna returns to battle despite his injuries, asking Saji to help him save countless innocent lives.

On the brink of defeat, the Gundam Meisters have been rescued by the intervention of Celestial Being's second team. Their rescuers identify themselves as Johann, Michael, and Nena Trinity, the Meisters of the mysterious Gundam Thrones.

The three superpower blocs begin planning a massive joint military exercise which will serve as a challenge to Celestial Being.

Although Princess Marina has secured assistance from the United Nations for her troubled homeland, the Kingdom of Azadistan is still in turmoil.

The Ptolemaios crew return to space for a rendezvous with Team Trinity. When they finally meet the new Gundam Meisters face to face, Setsuna and his comrades are disturbed by their attitude and behavior.

An international terror network has begun a campaign of bombing attacks in order to force Celestial Being to halt its armed interventions.

The Union ace pilot Graham Aker confronts Setsuna as he leaves Ceylon. In Tokyo, the news reporter Kinue Crossroad begins her own investigation.

The Human Reform League holds a memorial service for the soldiers whose lives were lost in the recent interventions, and reaffirms its opposition to Celestial Being.

Celestial Being's activities have reduced the level of conflict in the world, but there are some who do not welcome this change.

A mysterious benefactor has provided the three superpower blocs with a new weapon against the Gundams. Quickly establishing a military alliance, the superpowers organize an elite fighting force under the aegis of the United Nations.

Princess Marina leaves Azadistan and begins a worldwide diplomatic tour to seek help for her impoverished nation.

The Union, Human Reform League, and AEU begin their joint military exercise in the Taklamakan Desert.

In Earth orbit, Sergei's mobile suit team continues its attack on the Ptolemaios and the Gundam Meisters. While Setsuna and Lockon defend their mothership, Allelujah and Tieria find themselves caught in the enemy's trap.

Having determined that Team Trinity itself is promoting conflict, Setsuna confronts the Gundam Thrones. Tieria comes to his assistance, and the two Gundam Meisters fight as a team for the first time.

Four months have now passed since Celestial Being began its armed interventions. The initial chaos has subsided, and life goes on.

During Celestial Being's intervention in Moralia, Setsuna has been reunited with a figure from his past. His opponent is the mercenary soldier Ali al-Saachez.