and acela santos has her bag packed, ready to go. and daughter sunny also started their drive before the sun came up. these women are setting out on very similar journeys with two very different destinations. separated by an international border. >> so i can't sleep. i'm kind of nervous. about the surgery. >> hey, there. don't be nervous. you'll be fine, you'll be fine. >> reporter: we're in a country where so many are obsessed with plastic surgery. in a world obsessed with the fountain of youth. globally, cosmetic surgery rakes in more than $45 billion a year. music stars like lado and caddi b singing about surgery. ♪ so classic that ass to is on fat it's not ♪ >> reporter: to reality stars. >> liposuction 360 in a professional mini bbl. >> reporter: nene leeks and larsa pippen, on the hunt for the best bargain. many times that search lead eds them outside the u.s. >> i think my tummy tuck procedure in mexico, i added it up. i spent about $5,000. here it would have been about $18,000. >> reporter: but cheap doesn't always mean safe.