影片根据真实事件改编。一条大白鲨在一个偏远的岛屿上跟踪三个皮划艇爱好者。 当它们等待救援到来时，潮水开始上涨，迫使它们回到致命的水域。 现在比赛开始了，鲨鱼将要在他们回到海岸线的路上把他们吃掉。

A global scientific summit debates and fails on a plan to stop a massive asteroid heading straight for Earth, with all countries blaming each other for the impeding disaster. With communications tense, the daughter of a tech billionaire assembles her own team of specialists to try to destroy the asteroid before it is too late.