Thedocumentarydepictsmonarchbutterfliesgreatandmysteriousmigration.Eachyearsautumn,millionsofmonarchbutterfliesstarttheirincrediblesouthwardmigrationfromCanada,crossAmerica,toMexico.Theyflyabove2,000milestoarrivethemountainofMexico.....ThefilmopenswithcaterpillarsmunchingmilkweedinsouthernCanadainlatesummer.Sooneachcaterpillartransformsitselfintoasilkychrysalis.Roughly10dayslater,adelicatefour-wingedmonarchemerges.Then,atsomeunknownsignal,themonarchstaketotheaironatwo-month,2,000-mileflightoverfields,forests,cities,plains,openwater,deserts,andfinallymountainstocongregateinatiny,high-altituderegionofcentralMexicowheretheyveneverbeenbefore.Incredibly,theyarrivebythemillionsatthesametimeeachyear.Sheddinglightonthisnaturalwonderaresomeoftheworldsleadingmonarchresearchers,includingLincolnBrowerofSweetBriarCollege,independentbiologistBillCalvert,andOrleyChipTayloroftheUniversityofKansas.Puttingthemonarchphenomenonintoperspective,Taylorsays,YouvegotabutterflythatsoriginatinginToronto,oritsoriginatinginDetroit,Michigan,oritscomingdownfromSt.PaulormaybeevenWinnipeg,anditsmovingsouth.SomehowitfindsitswaytoMexico.Couldyoudothat?Nooneyetknowshowthebutterfliesdoit,butTaylorsresearchrevealsthattheyareexpertnavigators.Inoneexperiment,hetransportedMexico-boundmonarchsfromKansastoWashington,DC,andthensetthemloose.Atfirst,theyflewsouthasiftheywerestillinKansas—acoursethatfromWashingtonwouldmissMexicoentirely.Butafterafewdays,theycorrectedtheirflightpath,asifsomeinbornGPSunithadalertedthemtothetruedirectionoftheirdestination.Inanothersequence,NOVAaccompaniescelebratedmonarchwatcherBillCalvertaroundbackcountryTexasashelooksforsignsofthemonarchmigration.Sureenough,theyshowupenmasseandontime,headingtowardtheSierraMadremountainsacrosstheborder—thelastlegoftheirflight.AndintheMexicanstateofMichoacán,NOVAjoinsmountainvillagersastheycelebratethearrivalofthemonarchsinthefirstweekofNovember.ThebutterfliesarrivalmarksthestartofacelebrationcalledtheDayoftheDead,sincethelocalpeoplehavetraditionallyassociatedthemonarchswiththereturningsoulsoftheirdepartedancestors.Unfortunately,illegalloggingintheMexicanbutterflysanctuariesthreatenstheuniquehabitatthatmonarchsdependonfortheirsurvival.Monarchsmaynotyetbeanendangeredspecies,buttheirannualmigrationisanendangeredphenomenonthatcoulddwindletoinsignificanceifthegiantfirsthattheyclingtoduringthewinterdisappear.Gonealsowouldbethecolorfulfestivalthatclosestheprogram—(🎡)afireworksdisplaywelcomingthehardyflierstoMexico,withorangeburstsagainsttheblacksky,lookingalmostlikethebeautifulcloaksofthemonarchs..自己(🧜)挑(tiāo )选了这个(gè )戒(💏)指，大概率不会影响后续(xù )的发展(zhǎn )。瞒(⛔)着父亲（汤姆•汉(hàn )克斯TomHanks饰）从法学院辍学准备当作家的特洛伊•盖博（科林(🏧)•汉克斯ColinHanks饰）在报(😲)纸上看到一(🌄)则征个人助理的(⚽)广(📎)告，发现自(❓)己的未来老板竟然(🥦)是曾经风靡(mí )一(🍸)时(🎰)的(de )伟大的巴克•霍华德。你们(📏)就是篮球队(🥘)的(🎅)？乔唯一(🕤)直接往场(❣)中央(🍽)一站，张口就(🚂)道，队长是谁(shuí )？不久，玛(😒)丽被(bèi )赐名阿(🏗)加莎，她仿(💮)(fǎ(🕘)ng )佛成为修道院的囚徒(🔣)，失去了身体和灵魂(hún )的(😰)自由(yóu )。可是如今，聂夫(⛔)人的心(🎒)思(🚷)都(dō(😮)u )在聂远乔的身上，哪里(🌭)会在乎张秀娥(🛸)一个微不足道的小农女了？虽(suī )然家里的大(dà )人不相信(⬛)小孩子们(men )的说法，可孩子们还是渐渐意识到了(le )家中阁(gé )楼上(🎩)这(zhè )四(sì )个外(wài )星人存在的巨大(❌)潜(qián )在(zài )危(👇)机，悄悄的(⤵)(de )团结在一(🌾)起开始(shǐ )了一场人(🧝)类保卫(🔪)战。易(📬)中(zhōng )海已经答(🥂)应了许(🛳)大茂，一时也(yě )没(🦌)有别的办(bàn )法。窦(🦃)燕山(💲)(shān )精心(🏔)布(🖼)局，利(💑)用忘(🎻)忧草控制长安(🦓)城百(bǎ(🚧)i )姓(xìng )，全方位击溃云(🍮)烨(yè )信心，云烨(yè )利(😙)用自己(jǐ )出色(㊙)的头脑(nǎ(🎟)o )和思想，制(🚦)造超(😓)水准武器，在大战中击(jī )败窦燕山，拯救整个(🔨)李唐王朝