WhenamysteriousanddangerouswhirlpoolphenomenonappearsinthetropicsoftheAtlanticOcean, BelkaandStrelka, thefirstastronautsontheirwaybackfromamissiontoSaturn, aresenttoinvestigate.Astheyventuredownintotheswirlingoceandepths, theydiscoveramysteriousUFOattemptingtostealallofEarth'swater.Withthehelpofthei...