🌊The Great Flood (2025): Netflix’s Korean Sci-Fi Disaster Epic – Cast, Plot, Release Date & Review

Humanity’s final hope rises… and drowns. The Great Flood (대홍수), Netflix’s upcoming South Korean sci-fi disaster film, crashes onto the platform on December 19, 2025, after premiering at the 30th Busan International Film Festival. Directed and co-written by Kim Byung-woo (The Terror Live), this intense thriller stars Kim Da-mi and Park Hae-soo in a survival story set against an apocalyptic flood that swallows the world whole.

🌐 Premise: Survival in a Drowning World

The end has arrived—not with fire, but with water. A massive global flood engulfs the Earth, leaving humanity gasping for survival.

Inside a flooded apartment building, hope is running out as the water rises higher and higher. In this claustrophobic nightmare, one woman, Anna (Kim Da-mi), makes a desperate stand to save a child while the world outside collapses into chaos.

Alongside her is Hee-jo (Park Hae-soo), whose fate intertwines with Anna’s in a story where every second counts and survival comes at an unthinkable price.

⚡ “When the waters rise, who will sink, and who will fight to breathe?”

🌟 Cast

• Kim Da-mi as Anna – A determined survivor, fighting against the tide to protect innocence.

• Park Hae-soo as Hee-jo – A man confronting impossible choices as the flood closes in.

• Kim Kyu-na, Kim Byung-nam, Lee Dong-chan, Kim Su-kyung – Rounding out the cast of those trapped in the storm of humanity’s last days.

🎬 Behind the Film

Directed by Kim Byung-woo, known for his high-tension thrillers, The Great Flood promises both spectacle and intimacy. Unlike typical disaster blockbusters that focus on large-scale destruction, this film narrows the lens to the human struggle inside one building, amplifying both the suspense and emotional weight.

Written by Kim Byung-woo and Han Ji-su, and produced by Hwansang Studios, the film will bring Korean cinematic craftsmanship and Netflix’s global reach together in a story that feels both local and universal.

📅 Release Timeline

• World Premiere: September 18, 2025, at the Busan International Film Festival (Korean Cinema Today – Special Premiere section).

• Global Netflix Release: December 19, 2025.

🌊 Why The Great Flood Matters

Korean cinema has repeatedly delivered gripping disaster dramas (Train to Busan, Exit), but The Great Flood takes the genre to new depths—literally. By blending sci-fi spectacle with intimate human drama, it forces viewers to confront the terrifying fragility of survival and the bonds that might endure even in the face of extinction.

It’s not just a fight against water—it’s a fight for humanity itself.

Final Take 🌌

With Kim Da-mi’s fierce emotional core and Park Hae-soo’s commanding presence, The Great Flood is shaping up to be Netflix’s next global phenomenon from South Korea. A disaster film with soul, it asks: when the waters consume everything, what makes life worth saving?

⚠️ Mark your calendars: The Great Flood streams December 19, 2025, only on Netflix.