WATCH: Police arrive at property where man was holding missing teen captive: Part 4

WATCH: Police arrive at property where man was holding missing teen captive: Part 4
  • Now Playing: Kidnapping survivor Abby Hernandez says captor put shock collar on to keep her quiet



  • Now Playing: What Would You Do: Teacher doesn’t have enough money for groceries and supplies



  • Now Playing: What Would You Do: Teenager ignores parents while playing Fortnite



  • Now Playing: What Would You Do: Thief steals a woman’s engagement ring at nail salon



  • Now Playing: What Would You Do: Coach doesn’t want white student athlete kneeling during game



  • Now Playing: What Would You Do: Coach doesn’t want black student athlete kneeling during game



  • Now Playing: Surveillance video shows moment missing teen returns home: Part 6



  • Now Playing: Missing teen learns name of her captor through book he gave her: Part 5



  • Now Playing: Police arrive at property where man was holding missing teen captive: Part 4



  • Now Playing: Kidnapping survivor recalls life in captivity and how she kept hope alive: Part 3



  • Now Playing: 14-year-old girl reported missing after she doesn’t come home from school: Part 1



  • Now Playing: Letter from missing New Hampshire girl appears in mom’s mailbox: Part 2



  • Now Playing: Kidnapping victim Abby Hernandez breaks her silence on ’20/20′



  • Now Playing: Cruise ship stranded off Massachusetts shore after losing power



  • Now Playing: Delta wildfire rages through Northern California



  • Now Playing: News anchor whose daughter died of overdose makes public plea



  • Now Playing: Arrest warrant to be filed for officer who shot man in his apartment



  • Now Playing: Calif. interstate still shut down for more than 45 miles due to Delta fire



  • Now Playing: Video shows gunman entering lobby, firing on victims: Authorities



  • Now Playing: Woman blows off fingers after mistaking stick of dynamite for candle: Report



  • Read More