Im okay but first the nightline 5. Think your heartburn pill works fast . Take the zantac it challenge. Zantac works in as little as 30 minutes. Nexium can take 24 hours. When heartburn strikes take zantac for faster relief than nexium or your money back. Find the perfect gift for everyone at the jcpenney make your list sale. Get an extra 20 off with your jcpenney credit card and coupon. Get door buster deals on womens boots, sweaters for him and her, boys and girls dressup. Boys and girls dressup. Jcpenney, where giving star light star bright, the first star i see tonight i wish i may, i wish i might, have the wish i wish tonight wishes do come true. The lincoln wish list event is on. Right now get exceptional offers on the entire lincoln family. For a limited time your choice of mkc, mkz gas or hybrid for 369 a month with zero due at signing. Good evening. Tonight we are going on a journey deep underground at the u. S. mexico border into the tangle of tunnels used to traffic not only drugs but highlevel drug kingpins themselves. Nearly 200 of these tunnels have been discovered and abcs matt gutman takes us for an upchose look. Reporter in that beige garage is a multimilliondollar hole in the ground. And were about to stuff ourselves into it. My god, is it dark and chaus tro phone nick here. This is terrifying. We are the only News Team Ever to go down that hole. Thats a spike my head nearly went through. Reporter crabwalking our way down a former drug smuggling tunnel between the u. S. And mexico, one of the ways that tens of billions of dollars of drugs are trafficked into the u. S. Every year. U. S. And mexican authorities have found and destroyed over 180 tunnels along this border. The question they say isnt whether there are more tunnels, but how many and where. Much of what whats funneled beneath is the product of mexicos sin cineloa cartel. The leader busted out of prison earlier this year but having his come raids tunnel right into his prison cell. A tunnel fitted out with a motorcycle on a rail. Notorious not only for his narrow escapes and prison breaks but for the elaborate crossborder tunnels his cartel has engineered. Some like this tunnel discoverered near san diego, thousands of feet long. The job of finding them goes to the human moles, the customs and Border Protection tunnel team. You guys took the training . Reporter tasked with the sometimes deadly job of sniffing out the tunnels honeycombing the 2,000 mile long border with mexico. Whats crazy is that theres a tunnel right here and then theres a tunnel 20 feet behind. Three tunnels within the space of a year in 15 feet. Correct. Reporter out of the 180some tunnels found along the border 107 were discovered right here in the city of nogales. Dozens within a football field of where were standing. Concealing methods are creative. Its creativity. Its that simple. Reporter those engineers also use the massive drainage system between the two sides of the border. Right here is the tunnelling attempt. They chipped this wall out and crawled through here with the bundles and followed the wall around the bend, through the double gates, then they came out in the pipe north of the north gate. Reporter detecting them is nearly impo upon. The one here in arizona, a Retirement Community carved neatly into the floor of a garage along this quiet street. Looking at this house, would you ever think that theres a highly sophisticated tunnel right through there . You could drive by it a million times and not have any clue. Reporter topping off this ruse is this engineering gem. A trap door operated hydraulically from 1,000 feet away in mexico. Its perfectly camouflaged with the garage floor. Before we duck in, the one ground rule the rule is not to touch anything. Because its caving in behind you and theres no way back out. Reporter once inside, the air is in short supply. So they have to pump it in. And what little air there is feels syrupy. Cockroaches . We have cockroaches too. Reporter it only has to be comfortable enough to do one thing, smuggle drugs fast. Those sacks, thats got to weigh 50 to 100 pounds, eve one of those things. They haul them all the way back through . Correct, they drag them all wait back. Reporter dirt goes out and drugs go in. If you do a 4,000pound wad of marijuana that pays for the tunnel . Pays for the tunnel easily. Reporter dug by hand by day laborers, working with simple tools, for almost no money. No one knows how many tunnel diggers have died down here are. When diggers survive they often thank the tunnel gods. Wow, thats interesting. A lot of the tunnels they make Something Like thats in the tunnels. They vary. Sometimes theyre just stuck in the mud. Reporter in our hour inside the tunnel theres some fear it could cave in. You can see the plywood creeling on here is all just rotted away. It caved in. Right now just walk right here. Walk gently through here. You dont want to touch the walls or anything. Reporter we see artifacts and what passes for entertainment. Finally we reach the end. At the end wed be under the fence. Reporter the tunnel had been filled in on the mexican side. We hoped to see it but were told the Mexican Government was too busy to see us. You made a mistake and the Attorney Generals Office couldnt give us permission outside of the house. No one from the institution could go with you form. Reporter turns out youre agents were in hot pursuit of el chapo and wed have to fend for yourselves. That morning we got a call. Theyre willing to help us out. The officer of one of the prosecutors there is going to meet us. Okay. Reporter our convoy rolls up to a gated house. Its blocked. And someone scampers off to find a key which in this case turns out to be bolt cutters. Inside the house is a mess. A labyrinth of sodden clothes and leftover food. Still the hot sauce on the table, the tortillas as well. Maybe whats most amazing about this tunnel is a family used to live in that house. There are childrens toys and clothes. And yet in the backyard here, there was a massive piece of construction going on. That hole goes down about 25 feet. Its lined with concrete and cinderblocks. In order to dig that tunnel, 900 feet that inn that direction they had to remove hundreds of tons of dirt. Yet the neighbors say they saw nothing and heard nothing. I asked the mexican officer with us who built it . The cartel . El chapo . Reporter he said he doesnt know. It was abandoned when they got there. Right at the end of this street, just four blocks that way, is the u. S. mexico border. That right there is the border fence which means that that tunnel was dug right underneath the noses of body u. S. And mexican authorities. Following the line of the tunnel above ground, supervisory Border Patrol agent tom pittman admits thats probably true. Customs and Border Protection has robots they insert in the tunnels. This is one of those robots view inside Drainage Pipe used to smuggle drugs. Because of the tools and debris so often left in these tunnels the robots often snag and get stuck. They tell us theres no technological solution on the horizon either. What they know is that when they find a tunnel they know they have an exit point and theres only one way to find out its entry. So basically the technology that exists today is the same that existed 50 years ago when dealing with these tunnels . One of us that can fit will go in there without anything on, just a pistol and flashlight. Reporter and hope he doesnt find someone else in there. For nightline, im matt gutman in nago, mexico. And up next here, how Julia Roberts got the starring role in secret in their eyes, a role originally meant for a man. Also how she made our Michael Strahan blush. I like it welcome to the most social car weve ever designed. The 2015 nissan murano. Recipient of autopacifics bestinclass Vehicle Satisfaction award. Now get great deals on the nissan murano. I tried depend last weekend. It really made the difference between a morning around the house and getting a little exercise. Only depend underwear has new confidence Core Technology for fast absorption and the smooth, comfortable fit of fitflex™ protection. Get a coupon at depend. Com vo whatscorn . Dog foods first ingredient . Wheat . In new purina one true instinct grain free, real chicken is always 1. No corn, wheat or soy. Support your active dogs whole body health with purina one. Mike . Janet . Cough if you can hear me. Dont even think about it. I took mucinex dm for my phlegmy cough. Yeah. But what about mike . He has that dry scratchy thing going on. Guess what . It works on his cough too. Cough guess what . It works on his cough too. What . Stop dont pull me spoiler alert she doesnt make it only mucinex dm relieves both wet and dry coughs for 12 hours with two medicines in one pill. Start the relief. Ditch the misery. Lets end this. Tduring red lobstersg ultimate seafood celebration where new seafood combinations like the new grand seafood feast are stepped up, spiffed up, jazzed up. Yeah, this stuffed lobster tail, handcrafted brown butter scampi, and jumbo handbattered shrimp are that good. Or try the new ultimate woodgrilled feast. That Bourbon Brown sugar glaze gets ya preeetty fired up. With new dishes like these, why wait to celebrate . But just like this time of year, this is too good to last. So hurry in. Do you suffer from constipation or irregularity . Trust dulcolax® for dependable relief. Try free at dulcolaxoffers. Com dulcolax® tablets are comfort coated for gentle, overnight relief. Hurry try free at dulcolaxoffers. Com. Dulcolax®. Designed for dependable relief. Usic thunder clatter by wild cub dulcolax®. Designed for dependable relief. Most weekends only last a couple of days. Some last a lifetime. Hampton. We go together. Always get the lowest price, only when you book direct at hampton. Com what makesheart healthysalad the becalifornia walnuts. R . The best simple veggie dish ever . Heart healthy california walnuts. The best simple dinner ever . Heart healthy california walnuts. Great tasting, heart healthy california walnuts. So simple. Get the recipes at walnuts. Org. [door bell ringing] come ona my house, my house, im gonna give you candy. Come ona my house, my house, im gonna give you. Apple and plum and apricota too, eh come ona my house, my house a come on. Come ona my house, my house. Im gonna give you everything. Complete your thanksgiving table at target. Right now butterball premium frozen turkey is only 99 cents a pound. Come ona my house Julia Roberts has been churning out Box Office Hits since the 1980ss, earning the title of americas swee heart. The latest landing a role written for a man. Abcs Michael Strahan spoke to Julia Roberts about her new movie and what makes her happy. I dont have the stomach to watch him walk away again. Reporter from americas sweetheart to a meertsd seeking revenge in the new thriller secret in their eyes. I found martin. Reporter Julia Roberts plays an fbi agent investigating her own daughters death. What is it . Its carolyn. What . Its its carolyn. Its your daughter. Reporter it was an intense role help me reporter roberts had spousal support onset. Danny moder, the films cinematographer and her husband of 13 years. Did it help to have him there whenever you got out of a heavy scene . It helped if a couple of ways. Because first of all, i try to impress him so much that really, as much as i try to impress my director really . I think, is he . Okay. Are you trying to impress your husband . Of course. Hes my person. I love that. Hes my person. In that regard i think i definitely tried to go more, find more, to kind of make him go, i did not expect her to do that. It became very meditative to go to Work Together or come home together and weve kind of gone through we come home, how was your day . Well, we did this, this. None of that. It was all about the kids. Which was amazing. Reporter over her nearly three decade long career, roberts has played it all. From a Law School Student in the pelican brief to a maid of honor trying to steal the groom in my best friends wedding. I dreamt some psychopath was trying to break the two of you up. Reporter she won an oscar for playing a passionate activist erin brockovich. Not personal . That is my work my sweat, my time away from my kids if thats not personal i dont know what is reporter it was her role as a pretty woman that catapulted her career. Oh reporter 25 years later, i met up with robert in the same place where she shot pretty woman. The Beverly Wilshire holt. Hotel. Wow. Do you have any feelings that come over you when you come into this hotel . Abject awkwardness. Especially when i go into the elevator. Because the elevators are exactly the same and have the little seats. Color me happy theres a sofa in here for two first time in an elevator. Reporter thats when i just walk in and kind of look around. Everyones looking at their feet. Because you make them nervous . Because we all feel uncomfortable. You dont make me feel uncomfortable. If we got in an elevator youd be so uncomfortable right now. Dont you ever, ever reporter in secret in their eyes roberts played a role originally written for a man. When they say, we want you to play this part. They dont want you to play it as a man. Ive had to play oprah so im curious. They made me play oprah as a woman. I do feel masculine, im a manly girl. It was one of those things they had taken the man from the original and incorporated some issues, some situations from other characters, in the original, to put together to create the character that ultimately i do play. Reporter despite her superstardom roberts prefers to stay out of the spotlight and off social media. Instead focusing her attention on her three children. As the father of four kids myself i was excited to ask her for parenting advice. My daughter said to me last year, talking about school, and she was having some frustration. And she said, mommy, you just dont know what its like. The next morning i said to her, guess what im going to do today . Im going to sit in the back of your classroom all day today and understand what its like. Wow. By the time the bell rang to go home, this is what i know. No child wants to get in the car and have their parent say, how was your day . So you were overwhelmed by it . I just i just wanted it to be over. All i can say is, it was a quiet car ride home . And thats okay. Thats okay. To not be talking in the car . Is fine. I like that advice. Reporter roberts said she leads a normal life. Cooking, helping her kids with homework, walking the dogs. She even let me in on one of her family traditions. Theres something i hear you play at the dinner table, the family dinner game. The family dinner game. You ask questions around the table. Can we play that . Do you have questions . I have a few questions. Whats your middle name . Anthony. What is the first thing you look at when you see somebody . I guess you know, your eyes, your smile. Probably your eyes. Theyre brown. Theyre twinkly. Im blushing. I didnt think i blushed. They are brown and twinkly. Brown and twinkly, okay, thank you. Thats when you say, oh, so are yours. Reporter looks aside, i asked her about her key to happiness. You have the natural chemistry of joy. What is the natural chemistry of joy . Just a roll of the dice, i think. I feel like i was born of joy. And i know that you share that same feeling. That just happy is something that i feel im blessed with or theres also that sweet adage, it doesnt matter if you win or lose until you lose. Oh. Im just kidding, thats not i kind of liked it. I was mesmerized. Oh, boy oh, that was pretty good. Thanes to Michael Strahan for that report. Up next on nightline, would you hit the slopes after surviving this . Why and how this guy managed to walk away unscathed. under loud music this is the place. Their beard salve is made from sustainable tea tree oil and kale. You, my friend, recognize when a trend has reached critical mass. Yes, when others focus on one thing, you see whats coming next. You see opportunity. Thats what a type e does. And so it begins. With e trades investing insights center, you can spot trends before they become trendy. E trade. Opportunity is everywhere. Yeah. Thats the one right . We forgot dave thank you. So, can the test drive be over now . Maybe head back to the dealership . Its practically yours, but we still need your signature. The sign then drive event. Zero due at signing, zero down, zero deposit, and zero first months payment on a new tiguan and other select volkswagen models. Dear fellow citizen, i get that its hard to say no when your kids want toys, because youre saving for shoes. And shoes. And shoes. But i can help you figure out how to save a little with one deposit checking. So ask me, i can help you avoid fees. Sincerely, elizabeth trackler. Fellow working mom and fellow citizen. A professional skier gets back on the proverbial horse just two days after a deathdefying fall captured in a heartstopping video. How did he pull it off . Heres abcs t. J. Holmes. Reporter look and listen closely. Oh reporter thats professional skier Ian Macintosh plummeting 1,600 feet with the sounds of every painful bump and grunt recorded on his way down. Oh oh it felt like an eternity. It really did. I thought, this is never going to stop. Reporter macintosh was filming paradise waits when he mistakenly skis into a fivefoot trench and wipes out. Oh oh i had no idea that was coming. I knew at that point it was game over. I was going tort ride of my life. Reporter thats the very moment you hear him cry out. Oh no it felt like i was getting hit by linebackers the whole way down the mountain. Over and over and over again. Reporter while macintosh was falling he was thinking. He made the decision to deploy the avalanche air bag that was built into his backpack. Pull that white handle for me right there. Theres your life jacket. For when youre flying down the mountain. Youre thinking all these things while in a death spiral. To do what i do for a living you dont panic when things get intense. Reporter after falling nearly a minute, macintosh comes to a stop. Im okay reporter miraculously, macintosh was able to walk away unharmed and undeterred. These air bags are designed to keep you on the surface so you wont get buried in an avalanche. I dont want to die doing what im doing. I dont have a death wish, im not the type. But i do have a wish to live life to its fullest and get out there and live my dreams. And this kind stuff is what i dream about, its what i lay awake thinking about. Reporter for nightline im t. J. Holmes in new york. Our thanks to t. J. Holms and our thanks to you. Tune into gma first thing in the morning and dont miss diane sawyer interview with the star of the hunger games Jennifer Lawrence tomorrow. Were always online at abcnews. Co