The Great Flood

The Great Flood (대홍수, 2025) is a South Korean disaster thriller from director Kim Byung-woo, and you can watch it online on iFILM. In a matter of hours, rising water swallows a city and turns ordinary apartments into death traps.

A researcher (Kim Da-mi) and her young son are pinned inside their flooded home with nowhere left to climb. Just as survival looks impossible, a call hands her a mission that could decide far more than their own escape. Park Hae-soo plays the man tangled into the same desperate race, where every choice closes off another way out.

The filmmaker behind Tunnel again traps his characters and lets confinement and the ticking clock do the work. This leans intimate rather than blockbuster-loud, trading spectacle for the small, human calls people make when the water keeps coming. Good for fans of emotion-first Korean disaster films. Stream The Great Flood online on iFILM.