Starry Sky
When Nagate's fellow pilot Eiko Yamano is killed and absorbed by the Gauna, he fights the creature head on, despite being warned to keep a distance, as a shot is being fired from Sidonia to drive it away. The shot hits the target and the Gauna is knocked into space, while the remaining cadets return safely home. A funeral is held for Eiko and the high command officially announces that once again, Sidonia is at war against the Gauna. Three days later, Nagate is still disturbed with what happened and barely manages to sleep or eat properly. Meanwhile, the four highest ranking veteran pilots, led by Mochikuni Akai, pay a visit to the academy, and both Kunato and his friends believe they want to talk to him, but they turn to Nagate instead, much to his anger.
Aired 18/04/2014EP 2 - Starry Sky
Knights of Sidonia
It's been a thousand years since the Gauna, a strange alien race with no known method of communication, destroyed the solar system. A portion of humanity managed to escape using enormous "seed ships" like the Sidonia, which have allowed them to maintain the population while drifting through space. Nagate Tanikaze is a young man who has been raised deep in the bowels of the ship. When he goes into training to pilot the huge robotic weapons known as Gardes, Nagate is entrusted with piloting the legendary unit known as Tsugumori. Nagate and his fellow pilots put their lives on the line against the Gauna, in the ultimate battle for the survival of humanity!
(Source: AniDB)