Ep. 5: Nagate and Shizuka drift in space after Tsugumori fails while Sidonia prepares for search efforts.
Aired on May 9, 2014

Nagate locates Shizuka, but Tsugumori loses power, leaving them stranded in space. Lala Hiyama urges Kobayashi to organize a search, which she refuses. History lessons cover Gauna's 2109 arrival, Sidonia's 2384 launch, and the 2691 Aposims contact. The Kabi catalyst was found 600 years ago by a strike force including Kobayashi, Hiyama, Hiroki Saito, and Ochiai. Nagate recounts his underground life and beating his grandfather's Type 17 console score at age six. After spending over three weeks in the derelict Tsugumori with dwindling supplies, they are rescued by 256 guardian pilots who disobeyed the captain's orders.
Episodes
- Ep. 1 · Nagate Tanikaze joins Sidonia's Guardian pilot training after escaping capture
- Ep. 2 · Nagate confronts Gauna in Yamano's form while veteran pilots visit the academy.
- Ep. 3 · Nagate attends the Gravity Festival while Akai's squad faces a deadly Gauna threat.
- Ep. 4 · Kobayashi orders emergency maneuver after Akai squad death, leading to Gauna collision and Kabizashi retrieval.
- Ep. 5 · Nagate and Shizuka drift in space after Tsugumori fails while Sidonia prepares for search efforts.
- Ep. 6 · Nagate and Shizuka return to Sidonia as heroes before facing a new Gauna threat
- Ep. 7 · Nagate reflects on Shizuka's death while facing new Gauna threats and a planet destruction order.
- Ep. 8 · Nakazono, Samari, and Kunato squads battle Gauna while Nagate retrieves a sample resembling Shizuka.
- Ep. 9 · Nagate bonds with Placenta Shizuka while Kunato uncovers secrets about Ochiai and terraforming plans.