The Great Flood (2025)
A gripping South Korean sci-fi disaster drama about survival, sacrifice, and the fate of humanity amid a world-ending flood.
The Great Flood - Movie Information
- Original Title: 대홍수
- Release Year: 2025
- Directed by: Kim Byung-woo
- Type: Movie
- Genres: Sci-Fi, Adventure, Drama
- Age Rating (US): R
- Runtime: 1h 47m
- Original Language: Korean
- Spoken Languages: Korean
- Release Date (Theatrical): December 19, 2025
- Alternative Titles: Böyük Daşqın (AZ), Daehongsu (KR), El Gran Diluvio (MX), El gran diluvio (ES), The Great Flood (CA), Submersion (FR)
- Production Companies: Hwansang Studio Seoul
- Production Countries: South Korea
The Great Flood - Plot
When a raging flood traps a researcher and her young son, a call to a crucial mission puts their escape — and the future of humanity — on the line.
The Great Flood - Trailer
Watch the official trailer and see the stakes unfold in this harrowing survival story:
The last day on earth. The one choice for survival.
Where to Watch The Great Flood
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The Great Flood - Cast & Crew
Director(s)
- Kim Byung-woo
Main Cast
- Kim Da-mi
- Park Hae-soo
- Kwon Eun-seong
- Jeon Hye-jin
- Park Byung-eun
- Lee Hak-ju
- Yuna
- Park Mi-hyeon
- Lee Dong-chan
- Kwon Min-kyung
Writers
- Kim Byung-woo
- Han Ji-su
Producers
- Kim Kyung-min
The Great Flood - FAQs
Where can you watch The Great Flood?
The Great Flood is available to stream on Netflix, including Netflix Standard with Ads. It is a Netflix original Korean film, making it exclusively available on the platform for subscribers across supported regions worldwide.
Is The Great Flood based on a true story?
The Great Flood is not based on a specific true story. It is an original science fiction disaster drama that draws on real-world anxieties around climate change, global warming, and natural disasters to craft a fictional narrative about survival and humanity's future.
What is The Great Flood about?
The Great Flood follows a researcher named Koo An-na and her young son who become trapped as a catastrophic flood engulfs the world. When she receives a call connected to a critical mission, she must choose between saving her family and fulfilling a duty that could determine the fate of all humanity.
Who are the main actors in The Great Flood?
The Great Flood stars Kim Da-mi as researcher Koo An-na and Park Hae-soo as Son Hee-jo. The supporting cast includes Kwon Eun-seong, Jeon Hye-jin, Park Byung-eun, Lee Hak-ju, and Yuna, among others.
Does The Great Flood have a post-credits scene?
There is no widely confirmed post-credits scene in The Great Flood. Given the film's philosophical and introspective tone, the story is designed to conclude within the main runtime, though viewers are encouraged to stay through the credits for the full cinematic experience.
What is the age rating for The Great Flood?
The Great Flood is rated R in the United States, indicating it contains content suitable for adult audiences. Parental guidance is strongly advised, and the film is not recommended for younger viewers without adult supervision.
Who directed The Great Flood?
The Great Flood was directed by Kim Byung-woo, a South Korean filmmaker. Kim also co-wrote the screenplay alongside Han Ji-su, bringing a thoughtful, philosophically charged vision to this science fiction disaster narrative.
How long is The Great Flood?
The Great Flood has a runtime of 1 hour and 47 minutes (107 minutes). This compact running time keeps the tension focused and the pacing tight throughout the film's disaster-driven survival narrative.
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