WhenamysteriousanddangerouswhirlpoolphenomenonappearsinthetropicsoftheAtlanticOcean,BelkaandStrelka,thefirstastronautsontheirwaybackfromamissiontoSaturn,aresenttoinvestigate.Astheyventuredownintotheswirlingoceandepths,theydiscoveramysteriousUFOattemptingtostealallofEarthswater.Withthehelpoftheirgoodfriends,BelkaandStrelkaonceagainperformaheroicmissiontosavebothourplanetandthedistanthomeoftheirnewalienfriends.
