Transcript for Survivor recalls terrifying captivity that lasted more than 9 years
Because tomorrow is "d"-day. Reporter: Officials warn those two stayed behind to take this seriously. Thank you. And the women who were held captive in a house near Cleveland are opening up. Robin Roberts with their incredible stories. The first thing that I did is I dropped to the floor begging him to let me go. Reporter: Their terrifying captivity would last more than nine years. He taped my wrist and he taped my ankles, and then he put a helmet over my head. Reporter: Now, Michelle knight, Amanda berry, and Gina Dejesus are sharing their stories of hope, bravery, and resilience. How were you able to withstand that kind of abuse? It was difficult. I had to go blank. Any time he was doing anything to me, I had to put myself in a different place. Reporter: Their kidnapper and abuser, Ariel Castro, locking and chaining the women into his Cleveland home. There was so many just, like, tiny rules that we had to live by. We got a little sliver of soap about like that thick, just to wash our bodies with. We had to put the pan in the center, on the stove. It couldn't be a little to the left, a little to the right. Reporter: Then, after nearly 4,000 days, the miraculous escape. A neighbor hearing Amanda's cries for help, helps kick open a door so she could scramble out to call 911. Help me. I'm Amanda berry. I've been kidnapped, and I've been missing for ten years, and I'm -- I'm here. I'm free now. Reporter: Slowly but surely, each one of the women building a new life for herself. Our foundation's name is the Cleveland family center for missing children and adults. My center is located right next door to where I was held at. Reporter: Girl, you know how powerful that is to put it on that street? I just want to turn the neighborhood. I want to turn it to, like, positive and I want to give back. Everybody in life that goes through a tragedy, that's been in the dark for so long, needs to see the sunset and the sunrise. Just show the people that have harmed us that they don't control us anymore. Strong women, powerful stories. Our thanks to robin for that. She'll have much more on a special two-hour "20/20" event at 9:00 P.M. Eastern tonight.
This transcript has been automatically generated and may not be 100% accurate.