Kim's decision to try for a third child proves to be a matter of life and death. Meanwhile, Kendall fears backlash from supporting stricter gun control; and Kris gets emotional upon recognizing her mom won't be around forever.
A serious bout of sleep paralysis takes a heavy toll on Kendall's work and travel life; Kim searches for a method to control her anxiety; and Scott develops an unlikely friendship with Kris and her girlfriends.
The family celebrate MJ's birthday in San Diego, but can't escape the drama when Rob doesn't show up for the party and can't be found after a fight with Chyna. Meanwhile, Scott resurrects "Lord Disick" after much prodding from the Kardashians; and Kim finds doing North's hair a struggle.
In the mid-season premiere, Kim ends up upsetting her mom by helping Cait get ready for the ESPY Awards. Meanwhile, Khloe gets a taste of what her life would be like with bigger breasts; and Scott tries to find a healthy way to pass the time.
The sisters try to fix Rob and Chyna's relationship after the couple get into an explosive fight; the family set their sights on ending Khloe's streak of bad birthdays; and Kourtney panics about having to go on press tour without her siblings.
Kris urges Rob to reconnect with his sister and best friend in hopes of helping Khloe move in a more positive direction. Also: The Kardashian matriarch pushes herself too far to keep up with her daughters' intense workouts; and Kourtney worries about giving Scott mixed messages by joining him in Vegas for his birthday.
Peace is short-lived in the Kardashian family after Chyna launches an app that Rob's relatives find questionable. Meanwhile, Scott spends his time trying to prove that Kourtney is faking her allergies.
The Kardashian trip to Cuba continues. Included: A disagreement results from Kim's commitment to her work engagements on Mother's Day; Scott comes down with a major case of FOMO; and tensions rise over Kylie's Puma endorsement.
The ladies embark on a once-in-a-lifetime trip to the formerly restricted country of Cuba. Included: Kourtney butts heads with a family member; and Kris grows frustrated when she can't reach her girls overseas.
Kim spreads herself too thin as she travels to Iceland with Kanye for a music video shoot and is joined by Kourtney, who's celebrating her birthday weekend. Meanwhile, Scott considers surprising his ex; and Lamar plays peacemaker with Khloé and Rob.
Khloé has a difficult time moving forward with her divorce, and finds it even tougher while spending time with Kourtney and Kris in Napa. Meanwhile, Scott goes to great lengths to rid himself of the alleged Kardashian curse.
Kendall, Kylie and Khloé undergo a prosthetics makeover in hopes of experiencing a "normal" day out. Meanwhile Scott is feeling insecure about his place in the family; and Kris is resistant to Corey's idea of fun.
Jokes made by Rob on social media aren't taken lightly by the women in his family, which does little to help ease their concerns about his new relationship. Meanwhile, living together puts a major strain on Kris and Kim's relationship; and Kendall feels left out.
Khloé is upset when she is the last to learn that Rob is moving into a house of his own; Kim speculates about Kourtney and Corey's budding friendship; and landing on the cover of Architectural Digest brings out a new side of Kourtney.
Kanye invites the entire family to NYC for his fashion show, but Khloé is torn over whether Lamar can handle such a big first appearance since his accident. Meanwhile, Kim tries to keep Scott busy in hopes that he'll stay out of trouble; and Lamar meets Caitlyn for the first time.
News that Rob is dating Tyga's ex is met with shock in the Season 12 premiere. Meanwhile, Khloé rearranges her life to make sure that Lamar has proper care and a house of his own; Scott hopes some lifestyle changes could win Kourtney back; at the same time, Kourtney tries to embrace this new chapter of her life.