ItsbeenfiveyearssincethelastSharknadothatdevastatedWashington,D.C.andtheworldisbenefitingfromthishard-earnedpeace.AstonReynoldstechcompanyAstro-XwiththeirrevolutionaryatmospherestabilizerscalledAstro-Pods,managedtoeradicateallpossibleSharknadoformations,beforetheycouldgetthechancetogrowinmagnitude.Fin,isheadingtoVegasforafamilyreunion,somefunandrelaxation,butbeforelong,menacingcloudsareformingonceagainandabrandnewSharknadoisathand.