《宇宙小子第三季》是由Zach,Callison,Deedee,Magno,Estelle,Swara主演的一部欧美动漫片，Ayoungboytakeshismother’splaceinagroupofgemstone-basedbeings,andmustlearntocontrolhispowers.ThisseriesissetinthefictionalBeachCity,whereagelessalienwarriors,theCrystalGems,liveinanancientbeachsidetemple,protectingtheworldfromevil.Theyprojectfemalehumanoidformsfrommagicalgemstonesthatarethecoreoftheirbeing.TheCrystalGemsareGarnet,Amethyst,PearlandSteven,ayounghalf-human,half-Gemboywhoinheritedhisgemstonefromhismother,theGems’formerleaderRoseQuartz.AsSteventriestofigureouthispowers,hespendshisdayswithhishumanfatherGreg,hisfriendConnie,otherpeopleinBeachCity,ortheotherGems,whethertohelpthemsavetheworldorjusttohangout.Heexplorestheabilitiespasseddowntohimbyhismother,whichincludefusion(theabilityofGemstomergetheiridentitiesandbodiestoformanewandmorepowerfulpersonality).