Tidal Wave (also known internationally as Haeundae) is South Korea’s first big-budget disaster film, following various characters in the bustling coastal city of Busan as they struggle to survive when a catastrophic mega-tsunami strikes. Mixing human drama, spectacle, and large-scale destruction, it established a new wave of Korean disaster cinema.

Från IMDB:
A woman named Yeon-hee (Ha Ji-won) lives in Busan with her boyfriend Man-sik (Sol Kyung-gu) near Haeundae Beach. But, when they find out a tsunami will hit the city, They realize they only have 10 minutes to escape!