Sousuke’s team struggles to escape, but the path to freedom is blocked by someone from Sagara’s past who seems to be able to predict their every move.

Sousuke's team may be carrying a nuclear warhead, but nothing seems to keep Zaied’s forces at bay. Meanwhile, Gray and his crew are stunned by Gauron’s massive power.

Kaname gets upset after Sousuke spends most of the school festival budget. To make it up to her, he invites her to "a southern island." Of course, the southern island proves to be far from what she was expecting.

Arm Slave pilot Sousuke Sagara enters the most dangerous battle-zone of his career: high school. His mission: Protect the young Whispered, Kaname Chidori.

Tessa wavers uncertainly before ordering an attack on the Whispered Research facility. Meanwhile, Sousuke, Mao, and Kurz tail a suspicious-looking character that has crept into Kaname's apartment.

When Kaname and Sousuke find their escape from the terrorists blocked, Sousuke uses a Savage to begin an AS battle. The skirmish is interrupted when Gauron executes a perplexing move.

With his heart set on saving Kurz and Kaname, Sousuke climbs into the pilot seat of Mithril's new AS - the Arbalest - to take on Gauron!

When Tessa rushes to an SDF base after hearing that an A21 member has been captured, she’s shocked to find Takuma Kugayama. Seina, at the controls of an RK-92, has an even bigger surprise waiting.

Tessa and Mao decide the best way to settle a big argument is with an AS battle! While Mao is calm and composed, Tessa desperately seeks training from Sousuke.

The giant AS - Behemoth - is on the move, crushing Mao's M9 in only seconds! When Kurz attempts to engage the monstrosity, the situation looks bad - until a crusader appears in the sky!

Gauron unleashes Venom on Sousuke’s Arbalest. Sagara fights back ferociously, putting Gauron on the defensive as the action intensifies and the end draws near.

Kaname is in a bad mood after seeing Tessa emerge from the bath. Unfortunately, even as Sousuke Sagara tries to explain that things aren’t what they seem, Tessa finds a way to make the situation worse.

Sousuke takes on Danigan to rescue Kaname, while Kurz battles Guen. When his men are incapacitated, Gauron is forced to take suicidal action.

Sousuke suddenly decides to become Mizuki’s boyfriend! The cold, watchful eyes of Mizuki's friends settle firmly on Sagara - but it’s Kaname’s reaction he should be worrying about.

Gauron has control of the de Danaan, but Sousuke and Kurz are on the loose and taking steps to rescue Kaname, Tessa, and the others.

Kaname, Sousuke, and Kurz are out of options, so Sousuke suggests that Kaname should flee on her own. Not only does she refuse, she manages to save all three of them!