Bruce Jenner's Emotional 'About Bruce' Promo Will Give You Chills

So moving.

E! just released an emotional promo teasing the upcoming two-part special, Keeping Up with The Kardashians: About Bruce, which begins airing Sunday, May 17 at 9 p.m. ET/PT and wraps up Monday, May 18 at 9 p.m. ET/PT.

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In the gut-wrenching, one-minute clip, Bruce reaffirms that throughout his journey, his biggest concern has always been family.

"I don't ever think I've been as scared in my life as I was to be extraordinarily honest with my kids," Bruce admits.

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The spot shows candid homemade footage from Bruce's life, and also teases the concerns of the Kardashian and Jenner sisters.

In one touching moment, a crying Kendall laments, "I just don't like when people say Bruce is gonna be gone."

"I'm not going anywhere," says Bruce.

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"I do want to meet her when he’s ready. When we're both ready," Kylie adds.

If this first look is any indication, the eye-opening look into Bruce's transition isn't one you will want to miss.

Watch the biggest revelations from Bruce Jenner's 20/20 interview.

12 Biggest Revelations From Bruce Jenner's 20/20 Interview

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