Reporter: So, when you drive around here, what is it that you're looking for? I'm looking for Catherine. Reporter: Andy and patty grove are searching the streets of this tiny town for their... See More
Reporter: So, when you drive around here, what is it that you're looking for? I'm looking for Catherine. Reporter: Andy and patty grove are searching the streets of this tiny town for their 27-year-old daughter, Catherine. There she is, is that Catherine? I can't -- no, that's not her. Is it? Reporter: Last year she left home in Arkansas and joined a group called the church of wells. She didn't tell us she was leaving. We don't know why she left. And we've seen members going in and out of the shan'ties here, after midnight, carrying boxes. Reporter: Here's Catherine on a video from the church web page. I cannot can change my wretchedness. Reporter: Her parents say the passive woman you see here is a far cry from the Catherine they remember. ? Hello? Could we speak to Catherine, please? She's not here. We just want to say hi. Can we speak to you for just a minute? Reporter: They just won't answer when you yell -- I talked to hosanna before one time. Hosanna! Reporter: For months, literally months we've been trying every possible way, phone calls, Facebook, you name it to reach the so-called elders of the church of wells. Three very young men to see if they will come on camera and answer some of the criticisms about their church. Zero response. The love of Jesus Christ -- Reporter: We first decided to look into the church of wells when we saw the kind of videos they were posting of themselves. God is angry with the wicked every day. Reporter: The mobys are mostly affluent, young and tend to be from devout Christian families as is true of the leaders. You're going to fall into a ditch and burn in hell. Reporter: There is elder Jake garner, recently arrested for preaching on the grounds of a high school. Blessed are they who mourn for they shall be comforted. Reporter: Ryan, a former fraternity brother at Baylor university in Texas. A fool says in his heart there is no god. Reporter: And elder SHAWN Morris, the one many consider to be the true leader. The word of god -- Reporter: He's 27. So, now, we are driving directly into wells to see if we can find them and talk to them in an unscheduled way. Hey, guys. Lumberyard owned by members of the church right next to a gas station which is really the only business in the town. It's a very small town. See if we can talk to these guys. Excuse me, are you guys with the church of wells? Yes? Is there something we can help you with. Reporter: We're from ABC news looking to talk to some people from the church. How are you doing? Are you with the Urch? Good. Yeah. Reporter: Can we talk to you? I got to grab some grapes, you know? Reporter: Are you guys with the church? You look like you're getting ready to say something. And not a word. They may be vocal street E E advantage eeevangelists but they don't want it talk to us. Is there somebody who will talk to us? Maybe one of the elders? Maybe we'll ask inside. They ask us to put the cameras down and for the next hour, we wait inside their convenience store. Shawn and Jake eventually show up but they don't want us to film. We spoke to them for a little bit and eventually two of the quote, unquote, elders of the church came and respectfully asked us to leave. We made our case and said we would like to speak to them at length and they said they'll have to think about it and pray on it but they told us they would like us to leave. They seem to have lowered their profile in the months since the families of their members have started asking questions. Didn't take any of his belongings. He basically had a little handbag left with his wife and daughter, in the middle of the night. Reporter: Fred, whose son Brett is a member, has been trying to reconnect with him for years. There was no communication. And it was almost like a death in the family. Reporter: And for one family, it was a death. We pray for all of the kids caught up in this group. And we pray for the parents and the grandparents that have been cut off just like we have. Reporter: They were once close with their grandchildren but their daughter left to join the church three years ago. Not long afterwards, she texted her parents with a big announ announcement. It was a beautiful picture and it said, delivered into the loving hands of my husband, eight pounds, six ounces, I love her already. It was Sunday evening, we were sitting out by the fire, and my phone rang and came up with Daniel's cell phone number. And I knew. I knew. Reporter: Within days, there was a problem. The baby wasn't eating. Her hands were turning blue. Do you have an emergency? Yes, I do, my newborn baby has died. I need the sheriff's department. When did she die? About 1:00 today. Reporter: This is the 911 call Daniel made to police 14 hours after baby faith died. Why are you just now calling about it? Well -- we're Christians and we were praying. Reporter: Police say church members had been driving around town with the baby's lifeless body stopping at various places to pray over it. On this audiotape of the memorial service posted on the church website, the elders say they were praying for the baby to be resurrected. After that child died, we believed it was god's will that the child would be raised. Reporter: In their report the Texas department of family and protective services stated that there was reason to believe the death of baby faith was due to medical neglect on the part of her parents. That was all two years ago but last month, a grand jury chose not to indict anyone. I felt betrayed by the legal system because I felt like there was no justice. Reporter: I just sent SHAWN Morris, one of the elders of the church who we met last night a text that says good morning, just checking to see if you had a chance to consider my proposal. We would be happy to discuss further any time wherever it's convenient for you. We'll see if he gets back to us. As we wait we drive around town. We see members of the church, and women wearing prairie dresses walk the streets and we meet nonmembers eager to share their opinions. How do local feel about the church of wells? Can't stand it. Reporter: We visit with a local pastor who tried to welcome church of wells members when they first came to town. I said I would like to meet with them and find out who they were. About 20 hours of meetings. Reporter: Did you learn anything useful in? I learned a lot of real disappointing things about them. Reporter: They believe they can judge thwhether anybody's been saveled? Yes, in a nutshell, boys trying do a man's job. The scripture talked about where they desire to be teachers but they have need for somebody to teach them. Reporter: Can I ask you a quick question? Neighbors have similar complaints? You live right next door to a lot of these guys? Yeah. Reporter: What are they like? They're weird. Reporter: Do you worry about how this ends up? Yeah, yeah. We worry about what their motivations are. I mean, what is their ultimate goal? What are they doing here? You know? Reporter: How do people around here refer to the group? As a cult. Reporter: Publicly, the elders have contended they are not a cult and the members are with them of their own free will but the families desperate to maintain contact with their children disagree with that.
This transcript has been automatically generated and may not be 100% accurate.