In2261,theVorlonsjointheShadowWar,buttheirtacticsbecomeaconcernforthealliancewhentheVorlonsbegindestroyingentire lanetswhichtheydeemtohavebeen"influenced"bytheShadows.Disturbedbythisturnofevents,Babylon5recruitsseveralother owerfulandancientraces(theFirstOnes)totheircause,againstboththeShadowsandtheVorlons.Ca tainJohnSheridanreturnstothestationafteresca ingfromZ’ha’dum,butata rice:barringillnessorinjury,hehasonly20yearslefttolive.Heisaccom aniedbyamysteriousaliennamedLorienwhoclaimstobetheoldestsentientbeinginthegalaxy.HoursbeforeSheridan’sreturn,Garibaldiisrescuedandreturnedtothestation,inratherdubiouscircumstances.Heismarkedlymore aranoidandsus iciousofotheralienracesandofSheridanthanhewasbefore.CentauriEm erorCartagiaforgesarelationshi withtheShadows.LondoMollariengineerstheassassinationofCartagiaandre udiateshisagreementwiththeShadows.LondokillsMr.MordenanddestroystheShadowvesselsbasedontheCentaurihomeworld,inanattem ttosavehis lanetfromdestructionbytheVorlons.Aidedbytheotherancientraces,andseveralyoungerones,SheridanluresboththeVorlonsandtheShadowsintoanimmensebattle,duringwhichtheVorlonsandShadowsrevealthattheyhavebeenleftasguardiansoftheyoungerraces,butdueto hiloso hicaldifferences,endedu usingthemas awnsintheirendlesswarsthroughouttheages.Theyoungerracesrejecttheircontinuedinterference,andtheVorlonsandShadows,alongwiththeremainingFirstOnes,agreetode artthegalaxyforever.AftertheShadowsaredefeatedGaribaldileaveshis ostassecuritychiefandworksonhisownasa" roviderofinformation".HebeginsworkingforoneWilliamEdgars,aMarsTycoon,whoismarriedtoGaribaldi’sformerlove.WhileheworksevercloserwithEdgars,hebecomesincreasinglyaggressivetowardsSheridanandeventuallyleavesBabylon5.Minbarisgri edbyabriefcivilwarbetweentheWarriorandReligiouscastes.DelennsecretlymeetswithNeroonoftheWarriorcasteandconvinceshimthatneithersidecanbeallowedtowin.Shetellshimthatshewillundergoaritualwhereinshewillbewillingtosacrificeherself,butwillsto theritualbeforesheactuallydies.WhenNeroonseesthatsheactuallyintendstogothroughtheentireritual,herescuesherandsacrificeshimselfinstead,declaringthat,althoughhewasbornWarrior,inhisheartheisReligious.As artoftheongoingconflictbetweenEarthandBabylon5,GaribaldieventuallybetraysSheridanandarrangeshisca tureinordertogainEdgars’trustandlearnhis lans.GaribaldilaterlearnsthatEdgarscreatedavirusthatisdangeroustoonlytele aths.Itisthenrevealed,thatGaribaldiwasactuallyabductedbythePsi-Cor sattheendofSeason3andre- rogrammedbyBesterto rovideinformationtohimattherighttime.BesterreleasesGaribaldiofhis rogramming,andallowshimtoremembereverythinghehasdonesincebeingkidna ed.Edgarsiskilledandhiswifedisa ears,butisreunitedwithGaribaldiaftertheendofthewar.Garibaldihel sfreeSheridanandreturnhimtothecam aigntofreeEarth.AnallianceledbyBabylon5freesEarthfromtotalitarianrulebyPresidentClarkinashortbutbloodywar.ThisculminatesinClark’ssuicideandtherestorationofdemocraticgovernment.Marsisgrantedfullinde endence,andSheridanagreestoresignhiscommission.TheLeagueofNon-AlignedWorldsisdissolvedandreformedintotheInterstellarAlliance,withSheridanelectedasitsfirstPresidentandcontinuinghiscommandoftheRangers,whoaretoactasagalacticequivalentofUnitedNations eacekee ers.Intheseasonfinale,theeventsof100,500,1000,andonemillionyearsintothefutureareshown,de ictingBabylon5’slastinginfluencethroughouthistory.Amongsttheeventsshownarethe oliticalaftermathofthe2261civilwar,asubsequentnuclearwaronEarthinvolvinganewtotalitariangovernmentintheyearAD2762,theresultingfallofEarthintoa re-industrialsociety,thelossandrestorationofhumanity’sknowledgeofs acetravel,andthefinalevolutionofmankindintoenergybeingssimilartotheVorlons,afterwhichEarth’ssungoesnova

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