Kim has plans to travel to Iceland with Kanye for his "Highlights" video shoot. Kourtney tags along and makes a birthday trip out of it. Scott feels left out because he isn't celebrating Kourtney's birthday with her for the first time in 10 years. He wants to surprise her in Iceland, but Kris and Khloé convince him it's better to respect her space and focus on being a responsible dad. Meanwhile, Lamar attempts to mediate a conversation between Khloé and Rob, but they still have a way to go to improve their communication. Even though Kim initially went to Iceland for Kanye's music video shoot, she missed the shoot because she was busy celebrating Kourtney's birthday.

When Kris sees Khloé struggling, she urges Rob to reconnect with his sister; Kourtney worries about giving Scott mixed messages; Kris pushes herself too far in order to keep up with her daughters' workouts.

Khloé adjusts to caregiving for Lamar; Scott decides to buy a house in Calabasas to be closer to Kourtney and their kids, while Kourtney tries to embrace life without him.

Kendall, Kylie and Khloé get prosthetic makeovers in hopes of having a "normal day out"; Scott feels insecure about his place in the family; Kris resists Corey's idea of fun.

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.

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 travels to Napa with Kourtney and Kris, where she needs to make a decision about her divorce; Scott tries to rid himself of the alleged Kardashian Curse.

Fresh off the heels of his engagement announcement, Rob has another piece of news that will change the family forever. Meanwhile, Kylie struggles with anxiety from being in the spotlight.

Kim wonders if she should take a stand for Kanye, feeling fed up that he's misunderstood and unfairly vilified. Between hosting a party in Vegas and getting ready and filming Fergie's "M.I.L.F. $" music video, Kim is a busy lady. However, she still finds time to make an uncharacteristically public move when she calls out Taylor Swift in her GQ interview for lying about the permission Taylor gave Kanye to mention her in his "Famous" track. Kim discovers the entire Kanye/Taylor convo was recorded, giving her the ability to defend her husband and clarify the truth. Meanwhile, Kylie has a stalker and the family plays a prank to ensure she takes her own security seriously.

The girls are off to an unforgettable trip to the once-restricted country of Cuba; Kourtney fights with family members; Kris loses it when she can't speak to the girls overseas.

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.

Drama between Rob and the family flares up when Chyna launches an app they find questionable; Scott is on a mission to prove that Kourtney's allergies aren't real.

Kris takes her family on a surprise vacation to Vail, Colo.; and the Ks react to news that Rob has proposed to Blac Chyna. Also: Scott's behavior concerns Kourtney.

Conclusion. The family vacation in Vail, Colo., continues as everyone digests the shocking news that Rob is engaged. Meanwhile Scott tries to behave himself for the rest of the trip.

Kim, Kourtney and Khloé travel to to the once-restricted country of Cuba. Originally, they were going to watch Kendall walk in the Chanel show, but she had to drop out due to a schedule conflict. The sisters turn it into a family trip and bring Kanye, Malika and the kids along to absorb some culture. They tour the sites of Havana and are so taken by the Cuban capital that Kanye says he'd like to shoot a music video there. Meanwhile, back in Calabasas, Kris is lonely without her eldest daughters, so she focuses all her attention on Kylie. At first, Kylie feels harassed, but she comes around to enjoying the quality time with her Mom.

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.

In the mid-season premiere, Kim ends up upsetting her mom by helping Cait get ready for the ESPY Awards. Meanwhile, Khloé 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 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.

Kendall suffers from sleep paralysis; Kim searches for methods to control her anxiety; Scott develops an unlikely friendship.

Kim's choice to try for a third child proves to be a matter of life and death. Kendall fears backlash from supporting stricter gun control and Kris gets emotional about her mom.

A baby shower is planned for Rob and Chyna, but a fight ruins the occasion; Kris gets in an accident.