剧情介绍
AnearthquakeintheSaltonSeaunleashesahordeofprehistoricmolluskmonsters.Discoveringthecreatures,aNavalofficerandseveralscientistsattempttostopthemonsters,buttheyescapeintothecanalsystemoftheCalifornia’sImperialValleyandterrorizethepopulace.
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