The first episode of Caitlyn Jenner's highly anticipated eight-part docuseries, which chronicles her journey as a transgender advocate and her life post-transition, was packed with heartfelt and emotional scenes.
Here's a breakdown of the seven must-see moments from Sunday night's premiere.
1. Kylie Jenner first met Caitlyn over FaceTime.
"I don't want to scare you," said a surprised Caitlyn after answering the video chat."
"You're not scaring me," insisted Kylie, 17. "You look pretty!"
The 65-year-old and her youngest daughter met in person later at Caitlyn's Malibu house, and Kylie gifted Caitlyn teal extensions to match her own signature hair color.
2. Caitlyn still fears her transition could tear apart her family.
"Even Kylie coming over today – you never know, when they get away from here and they go home they go 'Oh my god, that is strange,' " said Caitlyn later in the episode. "Khloé hasn't been here. Kourtney hasn’t been here and hasn't met Caitlyn. Rob. Maybe them not being around is, you know, kind of their way of saying 'I don't really agree with this or what.' "
Since the episode was filmed, Caitlyn's children have rallied around her, in particular when they all showed up to watch her receive the Arthur Ashe Award Courage Award at the ESPYs in July.
3. Caitlyn mentored transgender youth, telling them ''we are all beautiful.''
In an emotional and uplifting scene, the former Olympian paid a visit to the family and friends of a transgender teen who had committed suicide and advised them to "hang out with the people that love and respect you."
Wrapping her arms around the group, she voiced an important message with three little words: "We're all beautiful!"
RELATED: Caitlyn Jenner's Message to Transgender Youth: 'We Are All Beautiful'
4. She filmed herself – with no makeup on – on a sleepless night and confessed to her fears of living up to her responsibilities.
"It's like, 4:32 in the morning – and I can't sleep," said Caitlyn as she sat down in bed.
"Am I going to do everything right? Am I going to say the right things? Do I project the right image?" she said to the camera. "My mind's just spinning with thoughts. I just hope I get it right. I hope I get it right."
5. She cleared up the rumors about her relationship with her ex-wife Kris Jenner's close friend, Ronda Kamihara.
When Caitlyn Jenner, at the time known as Bruce, was spotted spending time with Kamihara, their closeness ignited rumors of a romance.
Turns out, Kamihara is actually Caitlyn's stylist and friend.
"Years ago I confided in Ronda, and she really has been a friend that supported me," said Caitlyn after revealing their actual relationship.
6. Caitlyn plays tennis like a pro – but admitted she needs a sports bra.
At one point in the episode, the former Olympic athlete hit the tennis court to show off her skills.
"Now I know why girls need a sports bra!" she joked.
7. Kim Kardashian West got real with Caitlyn
In a "coming up this season" preview that aired at the end of the episode, Kardashian West had some important words for Caitlyn:
"You look amazing, it's your time. But you don't have to bash us [Kardashians] on your way up."
In the premiere episode, however, all seemed well between Caitlyn and Kardashian West, who brought husband Kanye West along.
The Yeezus rapper cracked a rare smile, and Caitlyn opened up about his role throughout the transition.
"I love how [Kanye]'s helped Kim come to grips with what's going on," said Jenner.
The second episode of I Am Cait will air Sunday at 8 p.m. ET on E!