>> this is night line. >> tonight the travel hacker. >> now he reveals the tricks of his trade through a challenge. how did he fly first class to sunny florida for a nice lunch and spend only 35 bucks? >> plus grit and grace. the dancing with the stars contestant who had bigger challenges than perhaps anybody who had ever competed. >> and boston strong. the boy who survived the bomb at the marathon one year ago and went on to triumph. and tom brady brings us a story

you won't want to miss. but first the night line top five which starts right now. >> i heard about progressive's name your price tool? >> i'm looking at it right now.

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bombing. new england patriots star quarterback did something very special but first we will start with something very different. he says anybody can do it. abc's rebecca jarvis got a lesson. >> how would you like to take a vacation to hawaii for just $5? or what about flying first class to paris on a free flight? sound too good to be true? this man says he hasn't paid for a flight in three years. today he has agreed to show night line how he does it. >> there's powder in colorado this weekend. let's go skiing. >> 12 hours to fly himself to a

destination of our choosing. can he get himself to ft. lauderdale, florida, have lunch and get back for nothing. along the way he agreed to show us his secrets. >> what is travel hacking? >> it is earning a lot of frequent flier miles. >> for many, earning free travel includes racking up frequent flier miles the old fashioned way. flying. >> how much would this normally cost? >> to rend a car? 60, 70 bucks? i wouldn't know. >> a $70 private car totally free. he scores $20 credit every time a friend or family member signs up for a service using his referral code online. >> thank you so much. >> are you can guy who is asking your friends to punch in codes

all the time? >> i am. i'm shameless. >> travel hackers navigate past the crowds by signing up for the delta skyline, more savings. $45 for free checked bags. destination? ft. lauderdale, florida. in this first class cabin we found passengers paying up to $1,000 per ticket. >> my ticket was $550. >> my ticket was literally free. so was my breakfast. >> using his arrival car, he was able to redeem 40 thousand miles for a round trip ticket first class on delta, a savings of $570. >> last year alone i earned over a million miles sitting on my couch. >> he says it's not about being rich. >> as long as you have a decent credit score and can manage that

and stay on top of it, anyone can do it. >> his secret? credit cards and lots of it. >> i have 23 credit cards. >> he says his credit score actually increased after signing up for the cards. >> it's not that having 50 credit cards is, in and of itself, a bad thing. of course you want to be responsible. you could lose your job or have a bad day and want to go out there and shop. if you have access to all of this credit this could be a dangerous situation. >> we trade the cloudy skies of new york to the sunny beaches of florida. >> we're here and it's all free for you. >> it is all free. >> we're looking for a table for two. actually make it three. >> and even at lunch, brice finds ways to score more miles. >> how does the venue look? >> pretty good. >> are you thinking about what's

on the menu or the points? >> always thinking about points. >> when you pay for anything with credit cards you will earn points but then there is the dining club. i already looked it up. this cafe that we're in is member of the united dining plus. >> this little cafe? >> you would be surprised how many are in there. >> it's rewards network.com, he was able to score a bonus of 170 miles if he dines out three times a week he will score an extra round trip ticket in just one year. >> it never stops. and that's how you're able to take trips all the way down to ft. lauderdale for free for lunch. >> and all of these perks may soon become a thing of the past. >> in the last year or so, airlines started tweaking with their frequent flier programs and devalued the programs across

the board. >> delta announced it would be changing its entire program. delta will reward based on how much you spend. >> it really pry ortizes people who are buying business and first class tickets. >> but hackers like brice say there will always be ways to game the system. and sit a competition, afterall. what is the final total? my cost is $650 for air fair and 90 for the rental car. a total of $740. across the board, bryce was able to get it for a steal. car was free, air fare cost nothing. he paid taxes and fees totally $35. a savings of $710. >> so you're doing all this work. why not just put money down now and then. >> you saw me talk to the folks

at the airport. we were able to fly here just for lunch just because we felt like coming and putting our feet in the sand. >> i can't imagine this not being worth it. >> it would have been worth $1,000 but the fact that it is free makes it better. >> it feels like a race against time. >> get the miles now and use them now because everything is going to be changing. >> and bryce is certainly taking that advice. he is celebrating his honey moon in hawaii. total air fare? just 20 bucks. i'm rebecca jarvis in ft. lauderdale, florida. >> coming up next, she's got the moves and something else. something truly extraordinary. the emotional story of the fan favorite who wowed the crowd on dancing with the stars tonight.

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>> if you're watching dancing with the stars tonight, you saw her, the contestant who has had to overcome so much not only to get to the dance floor but also to move around on it. very little could hold back a force of nature like amy. and david rice takes us behind the scenes. ♪ >> tonight on abc's dancing with the stars, a cinderella story. this year's sentimental favorite

dancing a waltz. >> i love the dance this week. it's a girl's dream come true. >> you have to look closely to know she has had to overcome more than any other contestant. >> trying to be graceful when it goes heel toe like that is challenging. but we figured staying low and staying on my toes a little bit more. >> she is a double amputee. >> having two prosthetic legs is a challenge. it's kind of like i am on stilts. one piece of carbon fiber. >> that's never stopped her. on the slopes at sochi, she won a bronze medal for snow boarding in the paralympic games. >> which is harder? the competition in sochi or

here? ♪ >> the competition on the dance floor, an olympic champion took the gold for ice dancing. >> is it pair to pit you against an olympic ice dancer? >> no. >> on the dance floor she not only has to summon the power and control, and grace as well. ♪ and rhythm. >> the human foot has bones and muscles and can balance back and forth. if you step and make a mistake, you foot can compensate. but if i step in the wrong spot, my foot isn't going to compensate. >> those feet were not made for dancing. >> it looks like they are barbie feet. they don't look like they could stand upright naturally. >> i read an article that said she's part transformer and part mannequin.

i say i'm a femme bot. >> she has had to improvisimpro >> i went with a swimming foot. it's made for swimming so we could put a flipper on. i could stand up on them and get the lines that we >> the core yak if i not just the disguising her weaknesses but playing her strengths. >> she was 19 when she lost her legs and her kidney function after contracting bacterial meningitis. >> within 24 hours of my first flu-like symptoms i was given less than a 2% chance of living. i lost both of my legs because my body went into septic shock

and that's also why i lost my kidney function. >> her dad gave her a kidney. >> i remember standing up on my legs the first time. they were so painful and confining. they didn't move and i thought how am i going to walk in these? how am i going to run and do all of this stuff? >> home from the hospital, she got carried away by a song. >> she was dancing before she was walking. >> a father daughter dance like no other. a story she and her partner reenacted in the third week of dancing with the stars. ♪ >> what i love so much about the contemporary dance that we did was that people got to see more of my story and see who helped me through this journey and also feel empowered by it. that's what this dance was about. it was not to make people sad,

it is to show that you can be in the depth of dispair and find your way to the top. and express that. >> a thing of beauty borne from the pain of starting over. her father wasn't the only person in tears. >> there won't be a dry eye in the country. >> he had tears rolling town his face and how proud of her he was, it was an honor and privilege to have been able to have the opportunity to be a part of that. >> the point for her is to rise above the concept of disability all together. >> it's all about perspective and how we look at ourselves. i have never looked at myself as if i have lost anything. if anything i have gained. >> whether she's dancing the

cha cha, or salsa, or even the waltz, there's always a little magic involved. >> having prosthetic legs, they move in a way that are not graceful. so if i can accomplish grace on these legs, i'm already a winner. it's like freedom. >> sicinderella herself in the glass slippers couldn't do any better. night line in los angeles. >> up next, somebody else who has had to overcome agonizing physical challenges. the young survivor of the boston bombing. what he did that surprised everybody. >> abc news night line, brought

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>> tomorrow right here in boston the survivors of the marathon

bombing will commemorate the one-year anniversary with a tribute ceremony and then they will march to a spot right behind me to the finishing line to the marathon where they will hold a moment of silence. tonight you will meet one young survivor who went on to do something remarkable and his story is narrated by new england pariot quarterback, tom brady. >> as this photo shows, minutes before his mom was set to finish the 2013 boston marijuana 11-year-old aaron hurn was standing here. >> i had just turned the last corn corner and then the first explosion went off.

>> the next bomb went off right in front of us. >> i swore that i could feel it. i was burning up everywhere. >> aaron hern had a huge wound on his left leg. rescuers tied a tourniquet. >> i could see my bone coming through. >> at boston children's hospital, aaron hern went into surgery. doctors managed to save his leg. >> they took us back into the icu and i saw him. he was alive and that's all that mattered. >> i thought i would maybe never be able to walk again because it was pretty bad. >> doing good. >> ten days later, aaron left the hospital. the first thing he did was

return and got out. >> i went to the exact spot and i was standing there. i was able to walk, jump, and run. i needed to do that. >> the next day aaron and his sister abby went with their parents to a red sox game. the whole family sang along to sweet care loline. >> they put us on the jumbo tron. >> weeks of rehab and determination got him back to playing baseball. in august in a tournament in cooperstown new york, he stepped up to the plate. >> i hit it and i saw it going really far. >> he swings and i see the outfielder run and i went he just hit a home run. >> i was so happy. i came in to home and my coach hugged me and he picked me up and he was ballining.wling.

>> what a sweet story. and one programming note for you. you can see a special edition of dream on, stories of boston's strongest which airs tomorrow night at 7:00. i have seen it, it's great and i highly recommend it. abc news will have full coverage of the anniversary. thank you for watching nightline. i'm dan harris. good night.

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