Ayoungboytakeshismother:#39;splaceinagroupofgemstonebasedbeings,andmustlearntocontrolhispowers ThisseriesissetinthefictionalBeachCity,whereagelessalienwarriors,theCrystalGems,liveinanancientbeachsidetemple,protectingtheworldfromevilTheyprojectfemalehumanoidformsfrommagicalgemstonesthatarethecoreoftheirbeingTheCrystalGemsareGarnet,Amethyst,PearlandSteven,ayounghalfhuman,halfGemboywhoinheritedhisgemstonefromhismother,theGems:#39;formerleaderRoseQuartzAsSteventriestofigureouthispowers,hespendshisdayswithhishumanfatherGreg,hisfriendConnie,otherpeopleinBeachCity,ortheotherGems,whethertohelpthemsavetheworldorjusttohangoutHeexplorestheabilitiespasseddowntohimbyhismother,whichincludefusiontheabilityofGemstomergetheiridentitiesandbodiestoformanewandmorepowerfulpersonality