When a Category 7 hurricane pummels New York, the surging flood waters bring thousands of sharks. To make matters worse, tornadoes soon dot the horizon. As Sharknadoes tear through the city, no vehicle, building, or national monument is safe.
As chainsaw-wielding Fin arrives in Washington D.C. for a ceremony in his honor, a mass of sharknadoes appears, forcing Fin to spring into action once more. When Fin learns the sharknadoes are not just threatening the Capitol, but the entire Eastern Seaboard, he races down the coast to save his daughter, in Florida for spring break. But as the storms grow even bigger, Fin must stop the colossal, unrelenting sharknadoes before the entire Eastern Seaboard is swept up and chomped into oblivion.
Five years after the wave of sharknados that wracked the east coast, our heroes are living a quiet life in the middle of the country - as far away from sharks as possible. But when a freak sand sharknado hits Vegas, Fin is thrown back into action, fighting sharknados on a cross-country race to save his family and the world - as all mankind should know by now, there is no escaping...
With much of North America lying in ruins, the rest of the world braces for the inevitable: a global sharknado. The mission gets personal for Fin Shepard (Ian Ziering) and his bionic wife, April (Tara Reid) when their young son gets trapped in a traveling ‘nado and transported all over the world. From London to Asia, Australia to Italy, Fin and his family must put a stop to the sharknados once and for all.