The original Full Metal Panic! spent 24 episodes building a world; this one inherits it and immediately makes you care about losing it. Sousuke's arc here stops being about teenage angst masquerading as duty and becomes genuinely devastating. Kyoto Animation animates every frame like it matters, and by episode 13 you understand why they were right to spend that much precision on a character learning he can't protect what he loves through force alone.

Two months after the events aboard the Tuatha de Danaan, Sousuke and Chidori settle back into what passes for a normal life. But Mithril has learned of a secret organization called Amalgam, which holds gear that can defeat its ECS cloaking and draws on Black Technology from Whispered like Chidori, and it wants more. When Mithril abruptly ends Sousuke's assignment to protect Chidori, everything seems to line up for Amalgam's plans. Friction inside Mithril and powerful new Arm Slave models make matters worse, while both Sousuke and Chidori wrestle with their own inner struggles. Military operations and mecha combat fill a sci-fi action sequel where the choices the pair make could shape their future.