TV series
An alien race called Gauna has destroyed Earth. leaving humanity struggling to survive aboard the spaceship Sidonia. Even though it’s been a century since the last encounter with the Gauna, military service is mandatory. For Nagate Tanikaze, whose grandfather secretly hid him in the forgotten bowels of Sidonia, it’s a strange new world as he’s forced to come to the surface. Yet his recruitment comes just in time, for the Gauna have suddenly reappeared.
Streaming, rental and purchase options
Checked Sep 1, 2026
Knights of Sidonia is available to stream on Crunchyroll Premium and Crunchyroll Premium (Via Amazon Prime) in United States. Use the direct links below to open the provider.
An alien race called Gauna has destroyed Earth. leaving humanity struggling to survive aboard the spaceship Sidonia. Even though it’s been a century since the last encounter with the Gauna, military service is mandatory. For Nagate Tanikaze, whose grandfather secretly hid him in the forgotten bowels of Sidonia, it’s a strange new world as he’s forced to come to the surface. Yet his recruitment comes just in time, for the Gauna have suddenly reappeared.
Choose an episode, then use the watch options above for the show.
Episode 1
In isolation his entire life, Nagate must adjust to life in a centuries-old space colony while training as a cadet pilot to fight an ancient threat.
Written by Sadayuki MuraiGuest stars Nanako Mori, Aya Suzaki, Rokuro Naya, Takehito Koyasu, Takako Honda
Episode 2
Nagate is haunted by his first combat experience against the Gauna. Later, he meets the elite pilots of Sidonia.
Written by Sadayuki MuraiGuest stars Nanako Mori, Aya Suzaki, Rokuro Naya, Takehito Koyasu, Yuuto Suzuki, Hiromi Igarashi, Soma Saito, Shinobu Matsumoto
Episode 3
Exploring Sidonia, Nagate makes an enemy of Kunato while protecting a friend. The Gauna attack, calling the pilots into action.
Written by Sadayuki MuraiGuest stars Aya Suzaki, Yuuto Suzuki, Hiromi Igarashi, Soma Saito, Shinobu Matsumoto
Episode 4
After a disaster aboard Sidonia, Nagate and his team are ordered to retrieve a valued weapon. He later defies orders to save a friend.
Written by Tetsuya YamadaGuest stars Aya Suzaki
Episode 5
Nagate and Shizuka, adrift in space, slowly run out of supplies as they await rescue from a departing Sidonia, which is too far away to send help.
Written by Shigeru MurakoshiGuest stars Aya Suzaki
Episode 6
Nagate and his squad graduate as pilots and are quickly sent into combat when the enemy returns; Kunato explores Nagate's history.
Written by Sadayuki MuraiGuest stars Aya Suzaki, Takehito Koyasu, Takako Honda, Ayane Sakura, Osamu Saka
Episode 7
The enemy is revealed to be even larger and deadlier than previously believed, resulting in three squads engaging in a deadly fight.
Written by Shigeru MurakoshiGuest stars Aya Suzaki, Rokuro Naya, Takehito Koyasu, Rikiya Koyama
Episode 8
Nagate is blamed for a defeat and harbors guilt over a casualty; the early years of Sidonia are revealed.
Written by Tetsuya YamadaGuest stars Takehito Koyasu, Rikiya Koyama, Mamiko Noto
Episode 9
The Gauna find a distressing way to demoralize and out-fight the attack force. Nagate returns to Sidonia with a prize that may help in the fight.
Written by Sadayuki MuraiGuest stars Takehito Koyasu, Ayane Sakura, Mamiko Noto, Rina Sato, Yoshimitsu Shimoyama
Episode 10
Pacifists endanger themselves by leaving the relative safety of Sidonia, while the enemy shows up larger and fiercer than before.
Written by Shigeru MurakoshiGuest stars Takako Honda, Ayane Sakura, Osamu Saka, Mamiko Noto, Rina Sato
Episode 11
A large strike force encounters an enemy unit that takes them by surprise; Nagate does what he can to protect his friends.
Written by Tetsuya YamadaGuest stars Takako Honda, Ayane Sakura, Osamu Saka, Rina Sato, Mamiko Noto
Episode 12
Nagate fights one-on-one with the heart of his enemy while the strike force does not fare well in its attack on the Gauna.
Written by Sadayuki MuraiGuest stars Takehito Koyasu, Ayane Sakura, Rina Sato
Episode information updated Sep 17, 2026
Ryota OsakaNagate Tanikaze (voice)
Aki ToyosakiIzana Shinatose (voice)
Tomohiro TsuboiIchirou Seii (voice)
Hisako KanemotoYuhata Midorikawa (voice)
Satomi AraiLala Hiyama (voice)
Eri KitamuraHonoka Clones (voice)
Atsuko TanakaIttan Samari (voice)
Kohsuke ToriumiKouichi Tsuruuchi (voice)
MBSJapan
TBSJapan
Polygon PicturesJapanMore shows like Knights of Sidonia.
