Code Geass: Boukoku no Akito 1 - Yokuryuu wa Maiorita (Code Geass: Akito the Exiled 1 - The Wyvern Arrives)
The story takes place in Europe in the year a.t.b. 2017. A Knightmare unit made of boys and girls from Area 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.