[suspeeful mus] [ausn] i'm aittle nes... thinkin'bout my pents' stor it'll behe firstime i wod-- i'd en on th section rio grae

where myarents cssed... in my li. firstime eve and think it gonna conct everhing reay, really wl for me ustin] ie been uh, ver-guidg re on thrio gran fothe pastix-ish years. i wanteople tonow what's o here. i want theove to bshared. is is wilderness as wild it t gets t people don't ke heang that. pele like hearg about wall. ratherhan talkg about tting up fence, why don' work t some rogniti

ofurutual prlems-- make ipossible for em to come he legall with a wk permit anopen theorder bo ways. we a natioof immignts, t we arelso a naon of la ill clinn] that' why our ministraon s moved gressive to securour borders re. ours' a natioof immignts, 're also nation law. eorge w.ush] we have responsility to sece our boers. presidt bush, he sned a ll today authoring the nstructi a fence alg the rder wh mexi. is fence would 700iles lon [upbeamusic] [barack ama] i think t ameran peopl they apeciate and beeve in immigraon. but theyan't hava tuation ere you st have half millioneople pourinover t borde without y kindf meanism controlt.

mpletehe dangefence. 'll workhis ti. [hilary clinto look, i voted , numero times when i w a senat spend mey to bui a barri to t to prevt , illegaimmigran fromoming in [dond trump]n day one, will ben workin an impetrable physicaltall, poweul, beautil uthern-bder wall [alause ancheering [upbt music] [cwd chantg] bud that wl! build at wall! bud that wl! build at wall! builthat wal bud thatall! [dond trump]uild thawall! build th wall!

[benthis who idea got stted a femonthsgo. i was rkin' for me wildle biologts out west tes. and ey were scribing me how physicalall uld have me reallserious pact a lot owildlife species alonthe rio ande. and was somhing tha- that i nevereally tught aut, the actu physic entity a wall. ani guess just wand to-- to arn morebout it.

ay] um, -- aughing] [b] on a jrney lik this, yore onlas good as theeam thatou have. and thisroup is azing. [ausn] like that d mess ts up. en] so y-- with rses, yo don'have to place pels. stin alvado a riveruide. henows t river iwest tex like theack of h hand. heather is aornitholist. shstudies rds and buttflies along e rio, and her knowlee of just t biodiveity at lge gonnae reallymportant fothe trip uhone seco. yeah. [b] filipeeandrade an increble filmaker. i excted lik- yeah, like t mariachband d great tourage. wooh, at a sta! d it is st like, "alrht, pullp next to the dm trucks we'rdoing th thin" - is halright? [ben] jakleberg,e wos for tes parks and wilife fouation. coervations his thg.

[ben] the wall igonna be builthrouga lot oflaces that are very ne and dear to hiseart. [chrissyshe may walkingy thtime youet back. - [jay] , that'sot a cool thi. - [chrsy] yeah [laughg] [jay] you sure can't jt strap r? i can t her the camback. - no! no, i pua little lmet on r with a [chrissya littleasket inhe frontf your be. - ah, withoggles. - [dghter] yh, yeah,eah. [chrissyhuckling [ben] ke this ing originat in colodo and byhe time hits he, 's tiny,inuscule and thenhe unitestates takepretty mh all oft. so we cat even fat down thuh, the ver righnow, that'shy we'reaking bis whh i'm nothat big fan of, t you kn, lookinforward to t horror retch. - [ptographe alright t in the, nice a ght. - [stin] deghted. - hotograpr] alrig, i thinthat probly got . - alrit. - nail it. - ah. what the lastime u rode aike, file? - [file] me? - ah. this mning. - this mning.

i just hped of w i'm hoin' backn again. right,et's go ke me bad disions. - [benhell, ye! - [filip let's gwith it. arrr! [bacround muc] [benwe arembarki on a,200-miljourney froml paso tohe gulf mexico. en] ridi bicycle wherthere isn't enou water. en] taki my muangs throh the g bend. d canoei down thrio gran. [b] tryin'o undersnd ere exacy a wallould go and at effec it woulhave. ♪ i dre i'm in wait, it, waittime out rious qution. there is goi to beoors inhipotentiawall.

are ere goa be doo like this taccess t rio grae? li you'll ve to gea key or somhing tacc-- . ay. ok, okay [ausn] wow! [filipe]ai so we a about to ent mexico ght now? en] no, 're justonna rid on t mexico de of thwall, buon the u eather] -man zon eather] it'sild beinalong thwall to he is massi 25-fo barri. it just els so sarate.

[jaywhile i s workinin el paso, th construed the wl, and th did it like 12 nths. from my perspecte, it wast a real like u cry ainst thconstrucon of tt fence at t time. t then sce then - ere haveeen peop elected ke congrsman oourke whwas agait thconstrucon of a-a fence. eto] i-- don't think lot of pple the intior of thes undersnd at the wl will notiterallye built the borr, at th ternatiol bounda line. it'll built welwithin he, it 100 yar. other aces it'- it's aile, miles uh, intohe interr and evywhere is gonna lo asgly as ts or uglr. [beto] el paso for the last 20 years s been eitherhe safes thsecond-sest or t thd-safestity in arica, whicis reallremarkab, because it is atomplete od with thrhetoric about thborder.

[beto] othe 2,00miles the us-xico borr, i lieve a littlever 600 les have fces, wal, physicalarriers. [backgund musi [bo] and tt began afte e 2006 secure fencinact, which publicanand demoats, induci senatorobama and clinn at theime, voted fo which eentially allowed the sh admintration, and th cceedingdminisations, to putp ese physal barris anto effecvely ive all vironmenl anlocal akeholders' saguards. eto] i tnk peopl o aren'trom the border this mig make a lot sense tthem lik- so whear the are proems with mexo or immration or dru, yeah, - a big git fence th steelnd concre that-- at makes lot of nse.

when y live he, you, you obvisly-- you e it difrently and yofeel it- u feel idiffertly. i ink beina politian anworking , acro the ale, in mt cases r candides, is not rarded atll. they are reward for extreme staes. i'will hur i'the reprentative om the 2d congreional dirict of xas, whicgoes from the inges of epaso l the wato san aonio. i ha 820 mil of the rder. and i spt ne and aalf year as an unrcover oicer the cia. i sit the homend secury commite. i' chased d guys all er the wld, ve chaseterrists, i've chad clear weapon prolifetors. i've tr-i'vehased the rcotrafintes. and yolearn th your adversarhas resoces.

theyave umthe commment to dsomethin and ey're-- ey're-- they'r- they'rsmart. th's why y convertion um,n uh-- on immration osecuri hato beginith operional controof our bder. i went tjohn marall high scol, but [indistinct] - ay, um - i'malking about en when weere in-- when wer hi-- ye. i ok my ri off, because viously wajust supsed to. - no, de you g to-- - at are y doing? - nobut like didn't ow-- nobody ee is weang jewel. [wl] we caget opational corol of o borde we can eorce our laws to givdeterren d a consuence tohat negave behavr. ackgrounchatter] [ben] weust got the end of theall for e first me. weeed ou- our n and won inhe bordepatrol tonow exactly wh the thrt is, so ty're nothowing up witno infortion about wh's goingn.

and-and so tt's why tting the rightools ismportant and-- d i think- i ink folkneed to alize thatou know,m, th we wannsere the bder, should ve secureour bord by now. - t's roll yoall-- yoall stargoing. okay, 're goa-- we're goa head bk. [ausn] theres wa-- there'like-- there is canal rht there - weust crosthe cana - [fipe] i'ltake my irt off and ve acros - [jay] i me we coul but uh- - [wil yeah. f sure, - it's sposed toe andventureright? [hther] weould jum throh here, could just sairight f. [will] ts shit ideep. [hther] you knowi can't t my bik- oheah! oh, that's ce. ooh! ooh [wil y'all dn't telle it wasold. - [lghing][heather yee-w, i kno [filipe]ettin' t congresan in a b of pick here. here we . - ilipe] g it. - y want the came or you nt the hd? i'll takyour han - ah.

[heaer] what yeah. - [hther] geing throh. oh yh. your govnment sates you. [laughin -i'm su. i geto my ne pointmenonime. [ling] [song the bacround] [atin] wh-hoo-hoo-hoo! - [j laughin -cheersboys. he well, tonly havg five be malfunions. yeah. [ben] prty good tmeal. glad iet to eathis. is heaer up? [heaer] yeahi'm up. okay

[austin]hy? thene need yr experte. there'all thesbirds flyin' aund. [heath] such amazing way to srt the d. justou out tre, listing to t birdson tan' everying in. and 's like such areatime to s all nds of wdlife. eather] i ew up inpstate, w york. wento collegat corne where i udied ecogy. i rked forbout fivyears as a fld biologist. then iursued maste in thbig bend and ll in lo withhe borde onhis trip i'going toe doing asany bi surveys along e route i can f in. myntention is to surveyhese are that nobodhas really sveyed bis before toee what e biodivsity is

befo a potenal rder walis built wh you thi a gh bird versity or jushigh bioversity, yodon't thk of a dert. but it some ofhe highe getationiversityand thereforbird divsity, because you have all ese diffent elevions and you ve the rio grande goi through th creates a comptely difrent habat. if you'rjust cruin' on b yore gonna thi thers not anhing here. buif you jt stop, and ke look ound, anlisten f a littlbit, u reale this pce is ale. [spensefulusic]

[ben] thrio gran the fouh longesriver in nor america it stas in colado, flowthrough w mexico and comes thus-mexicborder for over,200 mil in texas. ere e so man ms and dersions that t rio grae runs dryelow el so. anfor near 300 mil, there isittle too water. the rgotten ach. [playi the harnica] [heath] well- [austi leme help u out wi that. 're fucked 's home.

ilipe] we'dtart ridg oubikes, and e ride's in' pret well, anthen outf nowhersnow just srts dump' on us. [wind bling] [ben] m doing - brg the to back ale again. [jay] wo these are me big fkes. e temperure is dpping. [heath] the ros are very quily degrang. yocan rideor a lite while and th the-- the whls just cumulateud. 's stillike spring cditions erywhere [austin unting]

[austi i've ner be scared ay fro- om getng you kw, down buness andetting idone. [austigrunti] [atin] butang, at was some seris mud. that waslass fivmud right the. ustin grting some pot, you'reot ridinthe bike thbike is ding you d uh, yore startg touestiothe procs. [file sniffl and kes a de breath] ilipe] this tng is frking hea. [taking ep breat]

[filip we wakep the next mning, dede ju to dumphe bikes left ousupport ew and we ctinued oby foot. [filipe unting] [fipe] litally, ony knees. what abo inoing to e valley like go' even fartherp d goin' and ovethis? ishat option? [jay] i ink our ference pot is [indiinct].

[jay] 'll justave to go ound andome back ilipe] sry, ke running - [filip keep gog. that's i yh. for the rst timen this tp, i meawe're on a week to the tp, butoday ishe firstay at we go a alirst hanperspecte what sobody wou ha to go tough they we to crosillelly. ey wouldt be doi it on hseback, they wldn't be dog it on canoe, th wouldn' be doingt on bik - ilipe] ty'd be wking-- - [benfor thremonths. we camover to the ufrom bral when was abo six yea old. i waborn in e countride. i rememberraveling inhe amazo anyou know li being cefree in a w. d then we werdisplad from flood

gring up irio de jeiro, we we livingn the mo notoous ghet in the rld ry much the refront drugs, d thcartel a violenc ything w better in her es. flew over herbecause mom had worker sa. d we camover, me andom, my ster. i thinit was myom's inttion to come er here and eate a n life for mend my sier, without dad, becaushe was jt a nitmare of human bng. he was rlly abuse and-- anaddictedo drugs, and u know, not e kind operson th she wand to rai her kid what ion't thi shexpectedas that

he was gng to gerid of all our leg documen. she was fad with a veryifficultecision. go bk torazil, and th try andome backm, other wathrough migratio or jt stay he and fire it ou [file] ultimely that ant for out 14 yrs, wetayed ilgally. there arfour avees or cagories tough whi one can migrate lelly in to e unitedtates. the firsand the st coon is one sed family unificatn wherpreferce is ven tohe immedte familmembers. ictoria]he secon ute is tough employ-based iigration

the thd is thrgh e refugeor asyleprocess. anthe lastategory throu the versity sa lotte. ifou lk at the pt 10 or years, u see a velling t r about million r year. ere is aap to th. fos don't oo be undomented. when somebodsays: "getn line", ny timeshere aret lines. eto] e flow omigratioto the u is rlly a fution of ourconomy the funconf economs uhin themericas d it's hisphere, a functi of um, e kind ofiolence d brutaly, vil warsnd death that y find inentral arica that-- tt you ve und off d on in-in mexic thers so a miscception out mexi.

are at t zero u immiation wi mexo, whh means 's not a plusr minus,ight. , most pple willhink tha u know, st of th ilgal immiation is comg from mico. it not. it coming fromentral arica. meco is acally a partner ours in tryin stop illegal migratio becae they a dealing withome of t similarssues their sthern boer. [cicad singi] - [austi wow! wo lookt this! [filipe] it's rht thereman. - [atin] wow - ay] it me me go fast. - [atin] i'mo glad it's pement. -ben] no mud. issing] ustin] i just goa do thi 'cau my kneecan't be. [laughg] [st guitarusic [benwhen thatrailer pulledn, my het ju likeilled wi joy.

itymbolize the d of t bicycle which isike the eatest thg that's happed thus r on therip. - [dkey braying] -[l laughi] - [indtinct] -hers your hse. - alght, let's do . - ] your hse's me is "dkey dust [laughing] think i'm ready for a w life tether. [lghing] alright,e'll see you. [laughg] [ben] w, i've en fortunatto work ranches and too a lot packed ips all ov the amecan we. d then ts is dinosaur. [ben] mustangare so gd, ey know w to rid he's a butiful mtang. - ye. [ben] i ew they uld take gd care oeverybod ich is vy importt, beuse fili... no idea w to rida horse.

[filipe] yothink shll let mon? you ha riding ots. [austin]hat do y need, huh? how do u get on? [ben] ju hop on! [ausn] you kw you t it. [lghing] ye, buddy! alrit, let'so. [austin] l's go. - help me, hp me getff. - okaycome on. alrit, hold . alrit. no i'm gon ride bearound. co on,en! [hther] i' been on horse a handl of tim like t touristsituatio or like birthd rty or sething. i'm noparticully conceed. i trust n's judgnt. you know whicmaybe i ouldn' [file] let'side! verybody cheerin

[ben] e part tt i was st exciteabout wathe big nd. bibend ran state pk is 30000 acres big be ranch nional pa 800,000 acres combinedit's thimassive relavely untched habat. [jay] ancestoof mine, who wa parkand wildfe commiioner back in the '30s a '40s, vited thisountry whenhey wereooking at dignatingig nd natnal park anhe was a retively fous rancr. so thas in hislood like he es the ld d he seehow am ionna produce off of that nd. d his coent that theighest anbest useor that nd is f public creation we'rsitting e resuof thalegacy. 's imptant fore toomplete at circl

and try d protec anrea thate saw prising. th's threaned right noby the l. and so ii can do sething to sort protecthat lega, then feel ke thas anmportantart of-- of my fe rightow. [wstng] en] pay tention,oys. histling [ben] ros! easytough, ey, easy. [heatheralright, go ead now. en] yeah is is denitely walker. - [b] yeah. [heather carrying lot, ye. 30 mines in adnture mo, gaged. [b] thisrea is

some othe gnarest, rockiestnastiest terrain ve ever en in. every ngle piece of getation out he has thos and stickers a cactu [hther] alght. [heathergood, go. [file] dude,hese musngs are ma for theackcount. rtunately, all mmustangs th were alborn in e wild public nds in the arican we. [bacround muc] [benth grew upn desola rsh landapes likthis. ey know w to wal thugh thisountry, they knohow toeander through e rocks, d stay ay from t cactus, and w to navate througcliffs andifficulterrain. makes mproud to toee my poes take care of erybody so well