In order to initiate the regrowth of Ashoka the World Tree, the Mir fragment needed for Miwa and Altair to converse, Narain leads the Esperantos and the refugees to a new land. First they head for the Human Army base at Dhaka, accompanied by Kazuki and Soushi, but on the way they encounter a blinding sandstorm... and a swarm of enemies.

Narain's party has almost reached the base when they suffer a surprise attack and struggle to evacuate. Mitsuhiro realizes what has happened and orders the Fafners to retreat while, at brigade control, Emery says a prayer in hopes that the enemy will receive her message... but their enemy launches into an even crueler strategy.

The high-speed crafts are heading toward Tatsumiyajima to report what has happened to Narain's party. One of them carries the staff injured in the battle. Meanwhile at Tatsumiyajima, Canon battles with her own SDP, and talk of a "Second Plan L" begins to be heard.

As Canon continues to fight alone in Dreizehn, for just a moment, she glimpses a faint hope for the future. Her mother can only watch from outside, unaware of her daughter`s battle to grasp that hope. Meanwhile, Sui`s father discovers the link between Sui`s SDP and the good luck charm that his sister had left behind. Source: crunchyroll

As Canon continues to fight alone in Dreizehn, for just a moment, she glimpses a faint hope for the future. Her mother can only watch from outside, unaware of her daughter's battle to grasp that hope. Meanwhile, Sui's father discovers the link between Sui's SDP and the good luck charm that his sister had left behind.

The actions of the Human Army send a shock through everyone in the camp. Wounded and desperate for salvation, everyone's true feelings begin to spill forth. Meanwhile, flight from Tatsumiyajima is still impossible and effects on the island ecosystem have grown severe. Their sights turn toward devising an escape, and Alvis depends on the Fafners' SDPs to break free of the current crisis. On top of everything, the pilots' new assimilation phenomena continue to worsen...

The escape plan is in motion, but quickly faces a crisis. The fangs of the giant Festum that holds Alvis in its clutches sink in deeper and deeper, and Welle Shield 1 is destroyed, with Welle Shield 2 in imminent danger. Orihime endures the pain silently, but as he watches her, Fumihiko secretly makes the decision to enact the next plan. Meanwhile, Kenji and Sui witness something that shouldn't be possible...

Narain's party has arrived at the next camp, located in a that lost the majority of its land in battle. They fish in the adjacent sea, replenish their supplies, and indulge in a brief rest. Maya offers flowers to the ocean in memory of Shouko's birthday, and remembers that the next day is Kazuki's birthday, a connection she once thought of as strange. Meanwhile, the top brass at the Neo UN orders the use of something they've been developing in secret to finish Narain's forces once and for all.

Narain's party successfully reaches Tatsumiyajima, but the enemy awaits them there. They struggle as both a huge Festum swarm and the Human Army surround them, but Soushi insists reinforcements are coming. The Fafner unit arriving from the island tries to avoid fighting the Human Army and uphold Fumihiko's wish to not fight with other humans, but the Argos platoon pursues them with orders to capture an island Fafner.

The Neo UN agrees to the terms proposed by the top brass of Alvis for the return of the latter's prisoners of war. At the same time, Hester Gallop is informed that the new Fafner under development by the Neo UN is in experimental stages. Memories from her youth, when she first established the Neo UN, flash through Hester's mind; she has her own convictions and things she wishes to protect. However, certain personnel within the Neo UN have contacted Tatsumiyajima with plans of their own...

The Alvis top brass are searching for the place the Esperantos chose for the new settlement. There's a chance it may be occupied by the enemy, but out of respect to the Esperantos' wishes, they're determined to take it back if that is the case. Meanwhile, in the Tatsumiyajima burg, progress is being made with the improvement of the Zero Fafner. Siblings Rina and Akira are chosen yet again to pilot it, as their SDPs are expected to work in synergy with the Zero Fafner's power.

After making contact with Mitsuhiro, the enemy core plots to win over the commander who seized Australia's habitable zone, and the commander is actually influenced by the core's words. On Tatsumiyajima, Miwa is once again attempting to communicate with Altair, but it isn't going well. Later, as the final battle draws near, a long-planned coming-of-age ceremony is held for Kazuki, Soushi, Maya, Kenji, Sakura, and Kouyou, in which Fumihiko grants them official status as Alvis personnel.

As the Human Army's large fleet approaches, the voice of Tatsumiyajima finally reaches them in the form of Birds sent by Fumihiko. Human Army forces begin to abandon the Neo UN's cause and aid Tatsumiyajima against the enemy core and those under its manipulation. As the battle goes on, Altair makes its appearance at last...