简介:WhentheVikingspacecapsulesuddenlyreturnstoEarthfromitslongagotriptoMars,itbringswithitanintelligentvisitorthatispartAlienandpartET.Encasedinarmor,itextendsahumanlikeformfromitsshelltoexamineitssurroundingsandshowsaninterestinhumansincludingasoftcaressofafemalescientistpriortotheArmykillingit.Thisonlyenragesitssibling.