A group of tsunami survivors face a desperate fight for survival in this Australian action horror from director Kimble Rendall. The shoppers at an underground supermarket on Queensland's Gold Coast find their world literally turned upside down when a freak tsunami strikes without warning. Trapped inside the supermarket with waters rising around them, the terrified survivors, led by former lifeguard Josh (Xavier Samuel), soon discover to their horror that they are not alone, when they catch sight of two great white sharks cruising the now submerged aisles searching for their next meal.