When a tsunami devastates a coastal Australian town, survivors find themselves trapped inside a flooded supermarket with great white sharks swimming among the wreckage. Bait blends disaster spectacle, survival suspense, and creature-driven horror into a pulpy, claustrophobic thriller where humans must outwit both the rising water and the predators lurking beneath.

Från IMDB:
A freak tsunami traps shoppers at a coastal Australian supermarket inside the building - along with 12-foot Great White Sharks.