It tells the story of five "losers" who, seeking money and popularity, set up an illegal business at their school.

盛夏旺季，科德角的水上乐园挤满了消暑游客，一群凶猛的大白鲨突然闯入园区水域，把整片游乐区变成了开放式猎场。过气的前橄榄球明星、如今落魄的救生员临危受命，和担任当地女警长的前女友并肩作战。两人一边在混乱里疏散被困游客，一边…