Transcript for Bruce Jenner Talks to Diane Sawyer in 'The Interview'
Hat he's saying. I want to go to you, Amy. New material on the Bruce Jenner interview. So much anticipation for Diane sawyer's interview. For the first time, we're hearing Bruce Jenner on what his biggest worry is right now. It's the interview the world is waiting to hear. In this morning's just-released promo, Bruce Jenner talks about his thoughts and worries. It will be an emotional roller coaster. Somehow I'll get through it. Reporter: His journey and his future. I want to know how this story ends. You know? How does my story end? Reporter: It's a question so many have been asking with speculation and rumors about Jenner hitting a fevered pitch over the last few months. It made me who I am. Reporter: He's been in the public eye since 1976, when he became an instant celebrity, winning the olympic decathlon and becoming known as the world's greatest athlete. 2007, reinventing himself as a reality star on "Keeping up with the kardashians." Step father to four. Father of six. As he prepares to open up to Diane sawyer, it's that family he worries about now. Those are the only ones I'm concerned with. I can't let myself hurt them. Reporter: Diane's special, Bruce Jenner, the interview, airs tomorrow at 9:00 P.M. Eastern, 8:00 central right here on ABC. I know I'll be tuning in. As will so many. A compelling hour of television. Two hours. Now to a surprise in the
This transcript has been automatically generated and may not be 100% accurate.