The first two episodes are so devastating that they feel like watching a family die in real time. After that, the show collapses into something unrecognizable, character decisions stop making sense, the tone fractures, and what was genuinely tragic becomes erratic. If you want to know what peak character-driven disaster storytelling looks like before it implodes, this is the fastest way to feel both crushed and betrayed in ten hours.

A massive earthquake strikes Tokyo just after the Olympics, and the Mutou family is thrust into a crisis that soon engulfs the entire Japanese archipelago. Father Kouichirou is at his construction job, mother Mari is on her way back from abroad, daughter Ayumu has just wrapped up track practice, and son Gou is at home playing video games when disaster hits. As society falls apart and the country slowly sinks into the sea, the four of them must stick together to escape the city and survive. Along the way they fight not only to stay alive but also to come to terms with loss. Based on Sakyou Komatsu's 1973 novel and moved to a present-day setting, this ten-episode drama frames its sci-fi catastrophe through one family's struggle.