第 10 集: Izana的小隊與Gauna交戰，Nagate駕駛Tsugumori Kai Ni前往救援。
Izana's squad fight for their lives against the Gauna while Tsumugi and Nagate request for permission to rescue them. The Captain complains, and Nagate is entrusted with a new Guardian just completed, the "Tsugumori Kai Ni", for the mission. Meanwhile, Izana and another surviving pilot entry the atmosphere of Lem IX using one of Hayakaze's pieces as a heat shield while being pursued by the Gauna. In the occasion, Izana realizes that the Gauna are attracted to the artificial Kabi they lost and suspecting that they also react to Heigus particles, discards their fuel tanks as well, and they stop being pursued, while remaining with only a little energy left to maneuver enough to reach the surface. Once reaching Lem IX, Nagate and Tsumugi pass through all enemy opposition until they encounter a Benisuzume-type Gauna. Tsumugi then decides to confront the Benisuzume alone in order to Nagate keep searching for Izana. (Source: Wikipedia)
集數
- 第 6 集 · Nagate 在 Tsumugi 附近尋找住所，同時重力光束發射器測試以意外的觸手生長告終。
- 第 7 集 · 守護者們處理武器故障，同時駕駛員們面臨新裝甲測試與個人啟示。
- 第 8 集 · Nagate和Izana在Yuhata家中相遇，隨後Yure向Sasaki尋求關於發射器測試的協助。
- 第 9 集 · Izana 替補逃兵並與新型 Gauna 交戰，Nagate 只能無助地在一旁觀望。
- 第 10 集 · Izana的小隊與Gauna交戰，Nagate駕駛Tsugumori Kai Ni前往救援。
- 第 11 集 · Izana與隊友探索Lem IX地表，Nagate與Gauna交戰，Tsumugi對上Benisuzume
- 第 12 集 · Nagate在征服行星後返回Sidonia，而Kunato則觀察著一隻不完整的嵌合体。