Diane Sawyer and Bruce Jenner will appear on 20/20 this coming Friday at 8 p.m. ET for their long-anticipated chat about his transition from a man to a woman. In a new clip promoting the upcoming interview, Bruce Jenner reveals some new truths to Diane Sawyer.

Jenner tells Sawyer his biggest concern in his life-altering transition is his family. Bruce Jenner has three ex-wives, four step-children, and six biological children. Among that large group are ex-wife Kris Jenner, daughters Kylie and Kendall Jenner, and step-daughters Kourtney, Khloe, and Kim Kardashian.

“They’re the only ones I’m concerned with,” he tells Diane Sawyer in this latest preview. “I can’t let myself hurt them.”

This is also the first preview clip of the upcoming interview in which Bruce Jenner faces the camera head-on.

Bruce Jenner to Diane Sawyer in promo: Family members 'are the only ones I'm concerned with': http://t.co/iJsMQsrIVA pic.twitter.com/YRkvW9jGd0

— Entertainment Weekly (@EW) April 20, 2015

Very little footage of Diane Sawyer’s interview with Bruce Jenner has been revealed, even though this is the third promo clip released.

“My whole life has been getting me ready for this,” Bruce said in a previous preview.

The ABC network adds that viewers will learn about “the journey, the decisions and the future,” of Bruce Jenner during this interview with Diane Sawyer.

Bruce Jenner speaks out in a new preview from Diane Sawyer's interview: http://t.co/DRDSfVynF7 pic.twitter.com/YXK1fMMNTa

— E! News (@ENews) April 14, 2015

Will you be tuning in on Friday evening, April 24th, on ABC’s 20/20 to watch this highly anticipated interview featuring the Keeping Up With the Kardashians patriarch and Diane Sawyer?