With Earth finally lain waste by shark-laden storm systems, Fin Shepard (Ian Ziering) concludes that man's only chance for survival is for his team to journey back to the prehistoric past-and prevent the sharknados from ever forming! Their harrowing hopscotch across history to save our tomorrows propels the sixth (and supposedly final) finny franchise entry; Tara Reid, Cassandra Scerbo, Vivica A. Fox, Judah Friedlander, Debra Wilson, and another cascade of cameos co-star. 90 min. Widescreen; Soundtrack: English.