Episode 1
As the members of the Mutoh family go about their daily lives, a series of powerful earthquakes begins wreaking mass destruction throughout Japan.
Episode 2
With the waters rising, the Mutohs and their neighbors Nanami and Haruo decide to abandon the shrine where they’ve taken refuge and leave Tokyo.
Episode 3
Tragedy strikes, but the survivors continue making their way westward. Kite, a popular Estonian YouTuber, decides to join the group.
Episode 4
The group shelters at a grocery store, but earthquakes force them onward. They escape with the owner, picking up an English hitchhiker along the way.
Episode 5
The Shan City community welcomes the travelers with open arms. The group's leader communes with the dead, causing a rift between Ayumu and her mom.
Episode 6
The commune imprisons Kunio after the escape attempt. Ayumu realizes that the old man is using Morse code to try to share a desperate warning.
Episode 7
The survivors reach a port where boat evacuation is in progress. Ayumu is allowed aboard due to her athletic potential, but no one else makes the cut.
Episode 8
The Japanese archipelago begins to sink. The group escapes aboard a fishing vessel, but they're forced into the lifeboats after it's damaged.
Episode 9
The raft survivors rendezvous with Kite and Onodera, then head for the coordinates of a research facility: it may hold data that can save Japan.
Episode 10
Onodera's data contains a map showing that parts of Japan may resurface. For the survivors, rescue hinges on reconnecting to Kite's internet balloon.