sheriff thomas dart has started a battle after convincing mastercard and visa to join his fight. as marie vo reports, the website and its lawyers are fighting back. >> reporter: it's moments like in this woman thought she'd never have with her daughter, that's because her daughter wound up being travelled for sex online after running away. she and her family showed these images showing her from being an all-american girl, to be advertised by a pimp on backpage.com. >> he sold me every day and every night. for 100-plus days. he sold me. he did it on backpage.com. >> reporter: what was the reason me gave you for using backpage. >> he said it was better than safer. there. >> natalie, who doesn't want her face shown today was arrested during a sting operation 108 days after she ran away from home. her pimp is behind bars. the site where she was sold is in business around the globe. >> when you hear that your 15-year-old has been sold as a weekend special that's your baby, your child. and you think how can it be in the u.s. we can sell kids on the internet, free lie, like... ..how can

eight year-old thomas walkup is seeing better hit baseball just weeks after surgery in california, to fix a congenital condition called, nystagmus where the eyes dart back and forth. >> the operation went okay. >> yes. >> reporter: didn't hurt. >> no, and i don't need to sit in front of the classroom, and i could feel like everybody else. >> reporter: third grader living in millville was able to see just some by turning his head. >> i was told there was nothing you could do. >> reporter: thomas's mom, susan, found a doctor at irvine medical sent their performed surgery that removed muscles that caused you eye to shake. >> number 27. >> reporter: week after the surgery thomas went to the california angels game and got to meet his hero baseball star, mike trout, hoist also, from millville, new jersey. >> he is telling me he will hit a home run. >> reporter: what was it like meeting him. >> it felt special. not too many people flew out to california to get to meet mike trout. >> reporter: it was trout's parents live in millville and know thomas family who set up the the meeting. >> it was pretty amazing. >> reporter: baseball all-star kick in $2,500 t