AftertheeventsofStarWarsEpisodeIX-TheRiseofSkywalker(2019),PoeDameronandBB-8mustmakeanemergencylandingonthevolcanicplanetMustafarwheretheymeetthegreedyandconnivingGraballatheHutt.ThecrimebosshaspurchasedDarthVader'scastleandisrenovatingitintothegalaxy'sfirstall-inclusiveSith-inspiredluxuryhotel.WhilewaitingforhisX-Wingtoberepaired,Poe,BB-8,Graballa,andDean(apluckyandcourageousyoungboywhoworksasGraballa'smechanic)venturedeepintothemysteriouscastlewithVader'sloyalservant,Vaneé.