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

In the aftermath of the orbital battle, the Human Reform League's scientists realize that one of the Gundam Meisters is actually a former test subject of their own Superhuman Institute.

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 United Nations reveals the existence of the GN-X to the world, and announces the launch of a Gundam elimination operation with the code name "Fallen Angels." The operation begins with the renewed pursuit of Team Trinity.

Despite the loss of Lockon, the Ptolemaios crew are united in their determination to keep fighting the United Nations forces. The enemy begins another assault, this time spearheaded by the Alvatore, a mobile armor operated by traitor Alejandro Corner.

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

The Katharon base has been devastated by the A-LAWS attack. The words of a dying soldier remind Sumeragi of a traumatic incident from her past, and she passes out.

While Ian Vashti and his fellow Celestial Being mechanics prepare the O Raiser, a support machine for Setsuna's 00 Gundam, the A-LAWS deploy a devastating new weapon of their own.

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 Regene Regetta finally rebels against Ribbons Almark.