Tidal Wave — Ending Explained

When seismic activity in the Tsushima Basin triggers a mega-tsunami over 100 meters high, the residents of Busan receive an evacuation warning with barely ten minutes to spare. The colossal wave crashes into Haeundae Beach and Gwangan Bridge, flipping large cargo ships and causing skyscrapers to collapse.

Key climactic events, sacrifices, and fates include:

• Choi Hyeong-sik (Dies): Dives to save his romantic interest Hee-mi and an obnoxious tourist. When the helicopter rescue cable strains under excess weight and threatens to snap, dropping all of them to their deaths, Hyeong-sik unhooks his carabiner and cuts himself loose, plunging into the swirling waters to ensure their survival.
• Dr. Kim Hwi & Lee Yoo-jin (Die): Reach a rooftop with their young daughter, Ji-min. There is only room for the child in the final rescue helicopter. Hwi reveals to Ji-min that he is her father, hands her over to safety, and remains behind with Yoo-jin; the reconciled couple embraces as the secondary wave consumes the rooftop.
• Uncle Eok-jo (Dies): Man-sik’s uncle, who previously pushed for commercial redevelopment, sacrifices his own life to shield Man-sik and Yeon-hee from falling building debris.
• Oh Dong-choon (Survives): Comically evades death amid falling shipping containers.
• Choi Man-sik & Kang Yeon-hee (Survive): Survive atop a building, reconcile, and months later reopen their seaside eatery while grieving losses and facing the future together alongside Hee-mi and the community.

The film can be analyzed through several distinct thematic frameworks:

• The Sociological Reading (Critique of Modernization): The conflict over coastal redevelopment schemes pushed by businessmen and politicians contrasts with the traditional fishing community. The tsunami serves as nature's rebuke against unchecked commercial exploitation of coastal land.
• The Melodrama-as-Catharsis Reading: The disaster is less about scientific realism and more an externalized psychological catalyst required to force emotionally suppressed characters into necessary vulnerability and reconciliation.
• The Collectivist Parable: The film contrasts Western disaster films centered on lone-wolf individual heroes with a multi-character tapestry where survival depends on communal bonds, sacrifice, and collective mutual aid.