Drama: The Great Flood
Country: South Korea
Episodes: 4
Release Date: Sep 18, 2025
Duration: 30 min.
Genres: Action, Adventure, Drama, Sci-Fi
Content Rating: 15+ – Teens 15 or older
Synopsis
A catastrophic flood submerges planet Earth, trapping survivors inside a sinking apartment building. Among them are Koo An Na, an AI development researcher, and Son Hui Jo, a member of a human resource security team tasked with rescuing her.
As the waters rise and survival becomes uncertain, An Na and Hui Jo fight against time, fear, and human desperation. But Hui Jo’s mission hides deeper motives — why is An Na so important, and who is orchestrating her rescue? As secrets surface, the disaster reveals a far more dangerous truth lurking beneath the flood.
Cast
Main Roles
- Kim Da Mi as Koo An Na
- Park Hae Soo as Son Hui Jo
- Kwon Eun Seong as Sin Ja In
Support Roles
- Yuna as Lee Ji Su
- Kang Bin as Mi Jeong (Looter)
- Ahn Hyun Ho as Apartment 1503 Resident
- Kim Kyu Na as Apartment 304 Resident
- Jung Min Joon as Apartment 304 Resident
- Park Mi Hyun as An Na’s Mother
- Lee Dong Chan as Apartment 2002 Resident
Guest Roles
- Lee Hak Joo as Sin Ga Won
- Park Byung Eun as Lee Hwi So
- Jeon Hye Jin as Im Hyeon Mo (An Na’s Superior)
- Park Ji Won as Deaconess
- Jo Seung Yeon as Apartment 702 Resident
- Kim Su Kyung as Apartment 304 Resident
- Seo Suk Gyu as Apartment 304 Resident
- Jung Hyun Chul as Apartment Resident
- Lee Jae Woong
Final Thoughts
The Great Flood blends disaster survival with sci-fi intrigue, delivering tense atmosphere, emotional stakes, and hidden conspiracies. With powerful performances and a claustrophobic setting, the series explores humanity, sacrifice, and secrets beneath a world submerged in chaos.
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