The Great Flood is a South Korean disaster thriller released on Netflix on December 19, 2025, starring Kim Da-mi and Park Hae-soo.
Genre
Disaster thriller with sci-fi elements, focusing on survival amid a cataclysmic global flood.
Platform
Exclusively streaming on Netflix worldwide.
Runtime
1 hour and 49 minutes, delivering intense, non-stop action in a compact format.
Starring
- Kim Da-mi as An-na, the AI researcher and single mother (known from Itaewon Class and Our Beloved Summer).
- Park Hae-soo as Hee-jo, the enigmatic security team member (famous for Squid Game).
- Supporting cast: Kang Bin, Lee Ja Woong, Jung Shi Hoon, Kim Kyu Na
Overview
Directed by Kim Byung-woo (The Terror Live), this film portrays a world-ending flood that submerges Seoul, trapping residents in a high-rise turned watery tomb. It examines humanity’s primal instincts, technological hubris, and the thin line between savior and threat amid apocalypse.
Plot
On an ordinary day, a colossal tsunami—sparked by an asteroid collision—devastates Earth, flooding Seoul’s skyline and isolating an apartment complex. AI expert An-na desperately protects her son Za-in as waters rise floor by floor, rationing air and battling panic. Enter Hee-jo, a security team member who aids their survival but harbors secrets tied to shadowy corporate backers experimenting with the crisis. As alliances fracture and betrayals emerge, the trio navigates submerged corridors, moral quandaries, and revelations about the flood’s unnatural origins, culminating in a harrowing escape attempt.
Highlights
- Breathtaking practical and CGI flood sequences that immerse viewers in claustrophobic underwater terror, rivaling Hollywood blockbusters.
- Profound themes of motherhood, sacrifice, and ethical dilemmas in catastrophe, amplified by Kim Da-mi’s tear-jerking performance.
- Clever twists unveiling Hee-jo’s true role, merging thriller suspense with disaster spectacle for non-stop edge-of-your-seat moments.
Why Watch
Ideal for K-drama enthusiasts craving Squid Game-level stakes in a feature film format—its compact runtime delivers blockbuster thrills, stellar acting, and prescient climate disaster vibes without dragging. The realistic visuals and emotional gut-punches make it a must-watch for anyone into survival stories that linger long after credits roll.
Recommendations
Conclusion
The Great Flood elevates Korean cinema’s disaster genre with unparalleled immersion and heart—stream it on Netflix today to experience a flood of adrenaline and feels that demands a rewatch.