Season 1
24 episodes · Jun 28, 2019
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S1E1Spring Begins
Jun 28, 201925mAlong with three others, Natsu wakes up with no idea what's happened. The four of them reach an island and try to figure out a way to survive.
S1E2Insects Awaken
Jun 28, 201924mConvinced that Botan has kidnapped them, Natsu and Arashi sneak out of camp and run into another survivor. Finally, Botan reveals what she knows.
S1E3Light Snow
Jun 28, 201924mNatsu's clumsiness indirectly leads Team Summer B to the rest of their group. Her memories help them figure out their location, and their next moves.
S1E4Autumn Begins
Jun 28, 201926mArashi, Natsu and Semimaru stumble upon the Team Autumn settlement in the former Kobe region. They seem to be thriving, but their leaders are tyrants.
S1E5Heavy Snow
Jun 28, 201925mIn the ruins of Tokyo, Natsu, Arashi and Semimaru meet the sole survivor of Team Winter. Team Spring reaches Mt. Ogino Fuji and finds Natsu's message.
S1E6Grain Rain
Jun 28, 201926mAramaki joins Team Spring, despite Fujiko's doubts. Hana decides to search for Arashi after hearing that Aramaki met someone who fits his description.
S1E7Winter Solstice
Jun 28, 201932mHana and her companions discover a massive underground shelter. They find a survivor’s diary and learn the cruel fate of those who took refuge there.
S1E8Summer Solstice
Jun 28, 201924mHana's group and the Team Autumn survivors find the Spring settlement destroyed and abandoned. Momotaro wakes up among strangers.
S1E9Lesser Heat
Jun 28, 201925mTo survive, Hana and the others work together with Team Summer A. On the ship, Hotaru's cousin Hibari tells Natsu that Hotaru is slowly dying.
S1E10Cold Dew
Jun 28, 201926mAngo recalls his harsh upbringing in the program and the brutal graduation test that winnowed the survivors down to the final Team Summer A members.
S1E11Greater Heat
Jun 28, 201924mHana becomes convinced that Ango will kill her if she stays in the village. Natsu and the others make landfall near the former Autumn settlement.
S1E12End of Heat
Jun 28, 201926mRyo orders Hana to join him in searching for a water source underground, putting her in a vulnerable position. In the caves, Ango recalls Shigeru.
S1E13Frost Descends
Mar 26, 202024mTeam Summer A banishes Ango and Ryo as Haru and the others mourn the missing Hana. Aramaki leaves the settlement believing she is still alive.
S1E14Summer Begins
Mar 26, 202024mExpecting a trap, Ango and Ryo find and observe Team Summer B, but they are unexpectedly welcomed by the easygoing group.
S1E15Grain in Ear
Mar 26, 202024mThe two newcomers help Team Summer B. As they get to know the group, Ryo doubts their ability to survive. Ango begins to see Natsu as Shigeru.
S1E16Autumnal Equinox
Mar 26, 202024mThe carefree group enjoys life at sea, but Ryo tests their survival skills. Natsu reveals that Team Summer B is for dropouts, angering Ango.
S1E17Vernal Equinox
Mar 26, 202024mSuspicious, Botan searches Ryo and Ango's belongings while the others look for Arashi. Elsewhere, another survivor learns about the wilderness.
S1E18White Dew
Mar 26, 202024mTeam Summer B gets stuck in a bed of dense algae. they find a large ship and investigate, but Botan is wary. Stranded, Arashi sees the ship's kite.
S1E19Winter Begins
Mar 26, 202024mThe team members are separated after the ship's sudden movement. Arashi makes his way to help as Botan's group makes a discovery.
S1E20Lesser Cold
Mar 26, 202024mAngo's hallucinations lead to perilous situations for him and Arashi. Semimaru has a brush with death while Natsu gathers her courage.
S1E21Grain Full
Mar 26, 202025mA sanctuary in nature becomes a trap for small mammals and humans alike. Meanwhile, an iron-eating bacteria begins to spread throughout the ship.
S1E22Rain Water
Mar 26, 202024mFujiko and Chisa reunite with Hana. On the ship, the missiles begin launch prep while Team Summer B learns about Ango's past and the test.
S1E23Greater Cold
Mar 26, 202024mHana readjusts to other humans. Team Summer B works together to manually disable the missiles, but a series of passcodes complicates the process.
S1E24Pure Brightness
Mar 26, 202024mProblems persist in the ship as the spreading bacteria begins attacking. The missile countdown continues as the team makes a mad dash to exit.