this is "nightline." >> tonight, life as caitlyn. the exclusive diane sawyer interview. caitlyn jenner two years after the bombshell. >> do you miss being bruce? >> her life in the spotlight. her new thoughts on president trump. and the kardashian keepsakes she just can't part with. plus earthquake at everest. in the heart of nepal, a pristine paradise. on this day, a raging death trap. >> we all just turned around and started running for our lives. >> the catastrophic quake that december mated entire villages. an avalanche crushing climbers at mt. everest. >> i saw this giant wave like an empire state building of ice and rock. >> how the lucky survivors stayed alive. and heart-stopping footage from inside the destruction.

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good evening. thanks for joining us. the exclusive interview, kraim, the olympian turned transgender celebrity opening up about life since that ground-breaking

reveal. does she have regrets? is she dating? and what is the deal-breaker in her relationship with the republican party? abc's diane sawyer spoke with caitlyn, who says she's now ready to reveal the secrets of her life. >> reporter: almost every day someone goes roaring through the hills of malibu. there a woman in a dune buggy. and there she is again flying her plane over the houses of her children along the beach. >> caitlyn, have a great day! >> same to you, bye-bye! >> you can see her two times a week at the supermarket, turning strangers into friends. >> how are you today? >> i come around the corner, and this guy goes walking by. just goes, morning, ma'am. morning. i kept walking. and i just go, how wonderful is that. >> reporter: she'd always said her dream was an ordinary day, an uneventful hello.

>> this may be their only encounter with a trans person. i want it to be a good, joyful experience. >> come on, let me tell you what an inspiration you are. >> what's your name? >> matthew. >> get the camera out, let's do it. >> one, two, three. >> reporter: two years ago, this is where it began. >> are you a woman? >> yes. for all intents and purposes, i am a woman. >> reporter: bruce jenner, olympic athlete, famous dad on a reality show. waiting to stun the world by announcing inside he'd always been a woman. >> and that's very hard for bruce yep jenner to say. why? i don't want to disappoint people. >> reporter: in that moment, the anguished, uncertain man we knew as bruce said farewell. and three months later, this cover of "vanity fair" would introduce us to caitlyn. >> now my feeling on that picture, i know my kids thought, you know what it's a little too much. but from my standpoint, i had

suffered for 65 years. okay? to have a beautiful shot of my authentic self was important, and the shock value. >> you wanted the shock value? >> yes. i wanted to end the old bruce, my old life. and that picture did it. >> reporter: and then she did it again four months later in a roomful of 6,000 people. it's the espys, the academy award of sport, and she's getting the arthur ashe award for courage. in this room there are a lot of people who remember bruce jenner the 1976 king of the decathlon. a man of unmatched strength and speed mastering the ten olympic events that are the highest test of human endurance and raw masculine power. and now that same person is walking down the aisle in a long white dress. >> i'd like to thank my

family -- >> reporter: there, in the audience, the kardashian stepdaughters and his six jenner children. >> the biggest fear i've always had at coming out is i never wanted to hurt anyone else. most of all my family and my kids. i am so, so grateful to have all of you in my life. thank you. >> reporter: in the two years since our interview, so many young people said they felt safe enough to come forward. the estimate of transgender americans has now climbed from 700,000 to 1.4 million. in the beginning, she was euphoric. >> caitlyn, caitlyn! >> reporter: but so uninformed, she was about to hit all the hand mines. she was asked the hardest part of being a woman. >> figuring out what to wear. >> reporter: on the "ellen" show hesitant when asked if she supports marriage equality. >> if that word marriage is really, really that important to

you, i can go with it. >> it's funny because you're still kind of a little not on board with it. >> no, i'm on board. >> reporter: she now says she's 100% on board. but there was also her reality show. which tackled some serious issues in the transgender world. but mixed in a lot of makeup, clothes, wine, and the tone-deaf problems of privilege. >> so many paparazzi. >> reporter: she complained about paparazzi. while her community faces homelessness and violence. >> not talking about paparazzi, but talking about survival. >> survival. >> the question i think was, and i'm going to go hard -- >> hit me hard. >> the question was, do you really feel what they're living? >> i feel it and i see it. at the beginning of this whole thing, yes, i knew absolutely nothing. yes, i made mistakes.

on some subjects, i think i was insensitive, honestly. because i just didn't know any better. it's tough to take 65 years of being bruce and then like overnight everything changes. at first you don't know how to handle it. >> we don't want you! >> reporter: some people in the transgender community so angry they shouted her down in the streets. >> do you have any idea what's really happening out here? >> let's go, come on. >> you're an insult! >> i'm not representing you. >> don't you [ bleep ] touch her! >> reporter: at the same time, internet trolls attacked her for being transgender. >> just brutal. brutal. it's like you don't even go there anymore. >> what's the kindest thing anyone said? >> "i love you." people who have thought about suicide and said they wouldn't do it. >> reporter: and then last year in the midst of a contentious

election, caitlyn jenner again in the spotlight. on her tv show her transgender friends are horrified by her republican politics. >> republicans, your people, they don't like us. >> here's the deal. yes, i did vote for trump. >> reporter: she says she believed donald trump was personally intrusive and that he would surprise everyone on lgbt issues. here at the convention. >> i will protect our lgbtq citizens. >> reporter: when president trump saw her at his inauguration -- >> he wanted me to play golf with him. >> reporter: but just 34 days into his administration, she was shocked. he revoked an obama directive designed to strengthen federal protection of transgender kids on their bathroom choice. >> this administration, for me it was extremely, extremely disappointing. here's the dealbreaker with the republican party. and the dealbreaker is, you mess with my community, you don't

give us equality and a fair shot, i'm coming after you. >> reporter: strong words from someone who knows what it is to be transgender, even though so many decades she kept it a secret. >> it's a tough road. it's a tough, tough road. >> reporter: and she says, since coming out, she's been lucky to have the money to change her appearance. jawline, forehead, breasts. and she has just announced in the book that she has become one of the 12 percent of trans women who go on to get what's called final surgery. >> it's about what's between your ears and who you are as a person. it's your soul. okay? >> reporter: she writes, after much deliberation, i had the final surgery in 2017. the surgery was a success, and i feel not only wonderful but liberated. so all of you can stop staring. >> but i wasn't less of a woman the day before i had the surgery than i was the day after i had the surgery.

because that did not define who i am as a human being. >> no regrets? >> none whatsoever. >> reporter: then she issues a kind of social warning saying, this is a topic only a transgender person can bring up and the rest of us should never ask. so how did you decide to put it in the book at all? >> this book is about honesty. but that doesn't mean in the future that i have to talk about it, that i'm going to dwell. the media may. but i am not going to dwell on that subject. >> reporter: there were also the three marriages. the last one playing out in reality tv. >> do i talk to obviously the last one, kris, all the time? no. she's kind of moved on. i certainly have moved on. but we're fine with each other. >> reporter: what about her life ahead? someone new at her side? >> i don't -- i don't see really even dating in my future. i have not been approached.

i've never been out on a date. >> in two years? >> yeah. yeah, never been out. i just have a lot of friends. >> that doesn't necessarily heal loneliness. >> my life revolves around my kids. and they'll be in my life until the day i die. yeah, the room's kind of a mess -- >> reporter: her malibu home, now full of memories. >> kim gave me that one. >> these are daughter, stepdaughter -- >> yeah, this is a great bag. >> reporter: some of them sent by the kardashians. >> look at the sunglasses alone. >> they're actually very old. i think actually -- okay. i stole these from kris. a long time ago. >> reporter: others are just sentimental from the days when caitlyn could only be herself in secret. >> i have a terrible tendency to hold on to things. it's like i can't get rid of it because it represents something

in my past. >> reporter: as we walk into the hall there's a table with a lifetime of awards. she says she wants to concentrate now on raising money for transgender issues. do you think, in your lifetime, my lifetime, that we'll see full acceptance? >> no. i don't think we'll ever see full acceptance. is it going to get better? i hope so. and i hope that i'm part of that. i want to fight this fight. >> our thanks to diane sawyer. caitlyn jenner's book "the secrets of my life" will be released april 25th. up next, survivors of a nepal earthquake and mt. everest avalanche, the breathtaking footage and extraordinary stories of survival. does psoriasis ever get in the way of a touching moment? if you have moderate to severe psoriasis, you can embrace the chance of completely clear skin with taltz. taltz is proven to give you a chance at completely clear skin.

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it was among the most catastrophic natural disasters ever to strike nepal. the 2015 earthquake killed nearly 9,000 people, wiping out entire villages and triggering a deadly avalanche at mt. everest. tonight we hear stories of survival from some lucky visitors escaped the carnage and witnessed the harrowing footage taken from inside the danger zone. it's one of the most majestic yet dangerous places on earth. mt. everest in nepal's himalayan mountains towering more than 29,000 feet above sea level. two years ago on april 25th, disaster strikes. a 7.8 magnitude earthquake hitting nepal, killing nearly 9,000 people, trapping climbers on the world's highest mountain.

>> when i saw this thing, i figured, that's it. it's over. there's no surviving this. >> reporter: american filmmaker michael churtin was at base camp covering a team of climb wherts earthquake hit. at 17,000 feet, base camp is normally considered safe. >> it's about 11:00 or so. we're sitting there hanging out. and then all of a sudden the earth moves like that. it gets very violent, it's very hard to stand up. >> what was your first reaction when you felt it? >> i've got to get my camera. >> reporter: michael managed to capture a few heart-stopping moments as the avalanche thunders down the mountain. >> i saw this giant wave coming in, just a massive wall, like an empire state building thing of ice and rock. i could see ice and rock shooting out at an incredible speed. >> reporter: he and the other climbers scramble for whatever cover they can find. >> it looks like a horror movie. >> it was seven or eight seconds from the time i saw that impact would happen. i yelled, get down. then yelled, get down again. >> and braced for impact.

>> right. >> what happened around you in those seven second. >> my mind was like, where can i go that's safe? there was a concrete rock structure that the sherpa had built. fy put my shoulder against that, i won't get blown away. that's what i did. everyone else scattered. one this way, one that way. there really wasn't any time. >> reporter: he prepares for the worst. >> just like, so, this is how i die, huh? >> reporter: but he didn't. >> when i popped up, everything was gone. an entire 27 tents are just completely swept away. it looked like that was for all of base camp. it was just destruction. >> reporter: he was lucky. 19 people died on everest that day. among the dead, three americans. michael was suffering from concussion, a broken nose. >> i realized i was a casualty. you could see the way people look at you. i guess i had a lot of blood coming out. >> reporter: he somehow managed to hike down the mountain to safety, taken by helicopter to kathmandu two days later. michael's narrow escape

documented in this smithsonian channel's "nightmare on everest." but the climbers on everest weren't the only ones trapped by the deadly quake. california native cat heldman was in nepal on a month-long adventure. >> beautiful trails that go from one village to the next that are full of tea houses. really beautiful area. >> reporter: she was in this tea house in the langtan valley region when the earthquake hit. >> we all started running out of the building. when we got outside, the earth was just rolling and shaking. >> reporter: most of the climbers managed to escape from the crumbling building. with her husband filming, cat doing the unthinkable. >> i didn't even think, i just ran in. >> reporter: running back into the collapsing tea house to help someone escape. but the terror wasn't over. >> somebody screamed, avalanche! it was snow and rock and ice. and it was hurtling down the

mountain at velocity you can't fathom. we all started running for our lives. >> reporter: she survived but the village, december mated. cut off from the rest of the world with food and water and other basics in short supply. >> we set up like a little triage in the caves. we just took all -- we took all the wounded people into the cave. and -- sorry. we had to like try to figure out how to give comfort and take care of people that were badly injured that needed like professionals, not us. >> reporter: but the situation in the langtan valley was deteriorating. >> we have tried to use satellite phone to contact a helicopter rescue, but i don't think we've been successful so far. >> reporter: as cat describes on this phone call to abc news two days after the earthquake. >> we're in desperate need of rescue. we only have a couple of days of

food left. so i don't know what we'll do after that. >> reporter: and finally, four days after the earthquake, cat is flown out of the disaster zone. >> it was the first time that i think anyone really felt anything -- anything close to safe. >> reporter: for cat, a bittersweet departure, knowing the landscape that attracts so many visitors was now touched by tragedy. "nightmare on everest" premieres on the smithsonian channel monday. up next, anna faris live tweeting her home life with galaxy guardian chris pratt. wish your skin could bounce back like it used to? neutrogena® hydro boost water gel. instantly quenches skin to keep it supple and hydrated day after day. with hydrating hyaluronic acid, which retains up to a thousand times its weight in water. this refreshing water gel plumps skin cells with intense hydration and locks it in.

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finally tonight, if you were about to receive one of the most iconic honors in hollywood, would you be this relaxed? >> hope you're ready. >> reporter: he's getting ready again to be a guardian of the galaxy. today chris pratt, aka starlord, got his very own star along the hollywood walk of fame. perhaps attracting even more viewers in