Tune into to E! Sunday for the "Keeping Up With the Kardashians" two-part special about Bruce Jenner's transition into becoming a woman.

E! released a promo for the special airing at 9 p.m. on Sunday May 17 and Monday May 18.

In the beginning of the promo, Bruce is lifting weights back in the day when he was an Olympic Champion. He says over the tape, "You would think some day you're going to get over it. These are my secrets that I have to go through on my own."

The video fades into a time when he and Kris Jenner were much younger. Then in a short video clip, he is holding Kendall Jenner when he says to her, "I just want you to know that whatever happens, daddy will always love you."

Kim Kardashian says, "We want to know his struggle."

Khloe gets emotional in the promo. "I do want to meet her when he's ready, when we're both ready," she says through tears.

"I think his biggest concern is that he doesn't want to hurt us," Kourtney says.

Kendall Jenner seems to be emotional about the transition as well. She sobs in the video stating, "I just don't like that everybody is saying that Bruce is going to be gone."

The former Olympian comforts his daughter. "I'm not going anywhere," he promises.

Bruce Jenner admits that he was afraid of opening up to his family. "I don't think I have ever been as scared in my life than to be extraordinarily honest with my kids," he says.

The reality TV star sat with ABC's Diane Sawyer in April telling her about his transition.

"For all intents and purposes, I'm a woman," he told Sawyer in an exclusive interview.

"Keeping Up With the Kardashians: About Bruce" two-part special will chronicle the process Bruce went through when he opened up to his family. Viewers will see how each family member dealt with the news.

You don't want to miss it!

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