The big day has arrived: time for the E Class to put their skills to the test, dodging traps and pitfalls to defeat the Big Bad once and for all.

Another Masamune appears in front of Aki named Gasou Kanetsugu. Summer break ends and Masamune continues his approach on Aki but he learns that he is Aki’s betrothed. Masamune sees that Aki’s attitude toward Kanetsugu is completely different from how she treats him, so he panics and goes to Yoshino to figure out what to do, but...

Shino and Kiba still don't have a wedding gift for Hinata's wedding. Kiba's made it his goal to become the next Hokage, but unlike his teammates, who are steadfastly chasing their dreams, Shino is unsure about his. With this uncertainty, he sets out with Kiba and Akamaru on their final mission as Team 8!

Setsuna and Tieria are confronted by Ali al-Saachez and his new Arche Gundam. A furious Tieria tries to avenge Lockon, but is overwhelmed by the enemy's fighting strength. From Tieria's behavior, Lyle learns that al-Saachez is the man who killed his brother.

Tieria is shocked at the sudden appearance of his lookalike Regene Regetta. He is further disturbed by Regene's revelations about the Innovators.

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 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.

Having been rescued from near defeat by the Katharon resistance group, the Ptolemaios 2 now takes refuge at a Katharon base in the Arabian desert. Resistance leader Klaus Grad offers to join forces with Celestial Being against their common enemy, but the crew are reluctant to ally themselves with Katharon.

Setsuna and his comrades have successfully overpowered the A-LAWS and freed Allelujah and Marina from the Federation's detention center. When Marina asks them to return her to Azadistan, they set a course back to the Middle East.

The A-LAWS prepare a new trap for the reborn Celestial Being at a detention center for anti-government elements. This detention center holds the former Gundam Meister Allelujah Haptism, and the A-LAWS anticipate that Celestial Being will attempt to rescue their former comrade.

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 Innovator Regene Regetta finally rebels against Ribbons Almark. Meanwhile, Katharon and the Federation Forces have also been drawn into the savage battle between the A-LAWS and Celestial Being. Suddenly, a giant burst of light envelops the battlefield.

The A-LAWS and Federation Forces are gathering a huge fleet to exterminate Celestial Being, and their leaders anticipate a final decisive battle. Aboard the Ptolemaios 2, Setsuna and his comrades gather their resolve for the coming battle. They each give voice to their determination, and crewmember Feldt Grace gives Setsuna a flower which once grew in his Middle Eastern homeland.

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. Ian Vashti agrees, since this will enable them to collect new equipment from Celestial Being's nearby secret factory.

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. Despite their misgivings about the A-LAWS, Kati Mannequin and Soma Peries accept their new positions, promising to tell their friend Sergei Smirnov what they learn about this mysterious organization.