Dwyane Wade offers rare glimpse into his private life in new documentary

The former NBA star talks about, "D. Wade: Life Unexpected," that looks at his life on and off the court with never-before-seen home movies and exclusive video diaries from the last decade.
8:40 | 02/18/20

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Transcript for Dwyane Wade offers rare glimpse into his private life in new documentary
We have that powerful message from three-time NBA champion Dwyane wade. He has a new documentary coming out about his life on and off the court. It's called "D. Wade: Life unexpected" and offers a rare glimpse into his private life and the way he and his family, how they are supporting their daughter Zaya who recently came out as transgender. Dwyane is standing by and we'll speak with him live in a moment. First a look at their story. A lot of you guys see me as a superhero. Reporter: NBA superstar Dwyane wade is opening up like never before in the new ESPN documentary "D. Wade: Life unexpected." The 38-year-old revealing details about not only his professional life, but his family as well. Raising his five children including 12-year-old daughter Zaya who recently came out as transgender. They've done it again. Reporter: Wade says he and his wife actress Gabrielle union didn't have all the answers when Zaya first approached them and became educating themselves to support their daughter. When I was a kid I never knew if I was around someone who was gay, transgender, I never knew it so when Zion came out to us I had to get educated on every scenario and every situation and still being educated so my child comes home and says, hey, dad, I feel that I am a she, my job is to help you become who you are. Reporter: Zaya's brother sharing these photos of the two growing up posting on Instagram I have been blessed to have my best friend Zaya with me for 12 years. We did everything together. But the one thing we never did was leave each other behind. I don't care what they think. Z, you are my best friend and I love you. Union sharing this intimate conversation between Zaya and her father. Even when people are being Yeah, I think -- I know they can get tough, definitely. But I think you push through and you be the best you. It is wonderful to have Dwyane wade here with us. First of all, thank you so much for -- you're here to talk about the documentary and you got permission from Zaya for us to have this discussion. Yes, I did. That you had that you started with Ellen that got so much reaction. How is she handling all of this attention and people that are talking and now know her story? Yeah, she's -- she's a kid that wants to focus on school, right. Today she has a mock trial at school that she's stressing about and she's like, dad, I just want -- I want -- I came out to everyone because I wanted to be me. And I'm thankful that I'm able to be me but I need to focus on my trial at school, you know, you guys handle that. She is focused but I think for her and myself and my wife and our family, we love the fact that she doesn't have to hide who she is. She seems wise beyond her 12 years because when you hear more of that conversation in the golf cart and you said that she helped you and the family have a better understanding and helped you with this. How was she able to do that. Well, she's our leader and I think when her -- the conversation we had, the one thing about it, with parents is have conversations with your kids. You know, Zaya early on knew two things, she knew straight and she knew gay. But Zaya started doing more research. She was the one who sat down with us as a family and said, hey, I don't think I'm gay and she went down the list and said, you know, this is how I identify myself. This is my gender identity. All right. I identify myself as a young lady. I think I'm a straight trans because I still like -- I like boys so it was just -- it was a process for us to sit down with our daughter and find out who she is and what she likes and not put something on her because as parents we put our hopes and we put our fears on our kids. Right. And with Zaya we decided to listen to her and she's leading us along this journey. You didn't have to put this in the documentary. Nope. Why did you and what was that family discussion to reveal this this way? Well, I struggled on how much I wanted to talk about it in doc. I didn't talk about it a lot but I knew if I put it in the doc at all it would be a big conversation and we struggled with that from, yes, we understand our daughter is 12 years old. Yes, we understand what people will say about a 12-year-old but we know our child and so we sit back and say, you know what, as parents it's our job to oig out and find the information that, you know, we can and we sat down together as a family and reached out to as many people as we can. We researched as many things as we can to try to help not only our family but other people in this journey and along the way because one thing we do know as a family, you know, we've been through so many different things that other people in other families go through and say thank you guys for speaking out on it and being the face and the voice of this because we can't. And that's what we're trying to do. We know there's other families out there dealing with their kid finding themselves and learning who they are. What is your advice to a parent who is struggling to accept their child for any Yeah, I mean, I'm not going to sit here and act like we have all the answers. I'm not going to sit here and act like before our child came home and set us down that we was not ignorant parents when it comes to the world. Like when I say we're learning from our 12-year-old we're literally learning from our child so the biggest thing is have an open mind. Go out and research. Ask your child, ask other people questions about this because this conversation is real. Our 12-year-old deals with this -- this is her life every this can no game. We're about protecting her heart, protecting her joy and to do that, we have to support them. How do you protect her because I think some parents are -- they want to accept and they're understanding but as a parent you want to protect your child and you know as much support as you have received there has been criticism as well and for your daughter to even admit that and your son, the beautiful posting in saying, referring to they so how do you handle those people who are less than supportive? Well, our family, we love, we're imperfect but we love each other for who we are and whatever we're going to become in life and understand we have to protect each other. We get amazing support from we get a lot of hate from people but along the way we inside together as a family have to have each other's back and for us, it was important that Zaya understood her family has her back and just from the world and what people will say and think but she's known that for nine years. Since she's 3 years. Since she was 3 she's known. Yes and we've asked questions and we've learned. Did you know? Did you know early on? I knew early on that I had to check myself. That's what I knew. I knew early on I had to ask myself question, right? I've been a person in the locker room that has been a part of the conversation that has said the wrong phrases and the wrong words myself. And as I got older and as I watched my daughter grow, I had to go and look at myself in the mirror and say, who are you? And what are you going to do if your child come home and say, dad, I'm not -- I'm not a boy. Or that I'm a gay boy or that I'm a trans girl, what are you going to do? And for me that was my moment of -- that was a moment of real, you know, it's like this is not something that I grew up knowing that I played with a teammate or having a friend that came out to me as gay, as trans. As anything. My daughter was my first interaction when it comes to having to deal with, you know, this conversation. And hopefully I'm dealing with it the right way. Some people think I'm not but inside our home we see the smile on our daughter's face and the confidence she's able to walk around and be herself and that's when you know she's doing right. I hope she does well. That mock trial. She's sweating right now. It's real. I hope she does well. Thank you and bless you. We'll have you back in the next half hour because your documentary is brilliant.

This transcript has been automatically generated and may not be 100% accurate.

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