The new side story is set in a.t.b.2017. A Knightmare unit made of boys and girls from Zone Eleven are thrown into a military operation with a 5% chance of survival. They must rescue an allied unit left behind on the European warfront.Note: The first episode premiered at a special event at Cinema Sunshine on 16.07.2012.
- Other Title: Code Geass: Boukoku no Akito 1 – Yokuryuu wa Maiorita, コードギアス 亡国のアキト 第1章「翼竜は舞い降りた」, Code Geass: Akito the Exiled – The Wyvern Arrives, Code Geass: Akito the Exiled, Code Geass: Akito the Exiled – The Brightness Falls, cg gaiden, Code Geass Gaiden, Code Geass: Akito of the Ruined Nation
- Status: Completed
- Sub/Dub: Anime Dub
- Anime Type: Movie
- Genres: Action, Mecha, Military, Sci-Fi, Adventure, Seinen
- Characters: Kosaka, Ayano, Malcal, Leila, Naruse, Yukiya, Sayama, Ryou, Hyuuga, Akito
- Score: 7.35
- Rank: 2301
- Popularity: 1237