In the riveting special, members of his family expressed their mixed feelings about Bruce's surprise revelation that he's transgender, but also their unwavering support for the man they've known as a husband, dad, stepdad, and role model.
Though Bruce said ex-wife Kris has given him amazing encouragement, Kris said in the special:
"I want him to be happy, but my biggest concern is, are you guys [his kids] okay? It's like, I'm not okay. I don't know how to handle this. This is my life. I committed to this life and I think that he just backed out."
Part two of the special airs Monday at 9 p.m. on E!
For the Record: This post has been updated.