简介：　　AnupliftingandheartwarmingstoryaboutfindingthemagicofChristmas,nomatterwhereyoumightbe,ThisIsChristmasfollowsAdam(AlfredEnoch)andEmma(KayaScodelario)astheymaketheirdailycommutefromthepicture-perfectvillageofLangtontoLondonforwork.Everydaytheysharetheirjourneywiththesamecharacters,buttheyallkeepthemselvestothemselves.Butthenoneday,inthebuild-uptoChristmas,Adambreakstheunwrittenruleoftravelandstartstalkingtothestrangersonthetrain,invitingthewholecarriagetoholdtheirownChristmasparty.