Dateline Episode Trailer: The Gorge | Dateline NBC

Alice, come home with me. Little did you. know you'd be traveling thousands of. miles away to try to find your sister. Are we in a [music] different reality. now? We knew that we had to get. authorities involved. Can they help find her? >> They said she was an adult. She has the right to disappear. That's. when we. >> [music]. >> knew that we had to hire a private. detective. Sign on the door said, "Welcome home, Alice. I love you." You don't write a.

sign like that [music] to yourself. The. neighbor said, "Oh, she went to Taiwan. with her husband." Alice have a husband? [music] We're like, what? What? Not only do they not know. where their sister is, but now they're. finding out that she secretly got. married. Yes, lots of different. directions to be pulled in. We got the. name, Harold Cherchin. He's basically a. Tony Stark-level [music] super genius. Does he know where she is? Harold's last. contact with Alice was the train station.

>> [music]. >> in Hualien, Taiwan. Harold's contact was. suspicious, but we didn't disbelieve. what he had told us. We still believe. maybe she was hiding somewhere. They went to Taroko Gorge National Park. in Taiwan. So, answering said a lot of CCTV here. This case moved up from [music] local. police to Criminal Investigation Bureau. You potentially had a crime scene. somewhere in this national park, and it. is massive.

This data [music]. cannot change, so it's a solid evidence. >> This is technology. I'm in the [music]. case. Alice Ku was a woman of mystery. [music]. So much of her life was hidden from her. own family. You were never [music] going. to stop searching for Alice. No, we will. not. When there's no answer, you want to. [music] keep looking.

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