Chaos is unleashed when animals from New York's Central Park Zoo escape during a violent storm, posing a new and unpredictable danger to survivors.

When a massive hurricane hits Florida, Haley ignores evacuation orders to search for her missing father. Finding him gravely injured in the crawl space of their family home, the two become trapped by quickly encroaching floodwaters. As time runs out to escape the strengthening storm, Haley and her father discover that the rising water level is the least of their fears - relentless attacks from a pack of aggressive alligators soon become their deadliest threat.