Even though things are changing for the Kardashian family in ways they never expected, they are determined to remember that family always comes first.

Kris reluctantly allows Kim to take over the annual Christmas Eve party; Khloé must come to the rescue when North's hamster dies; Kris tries to understand the unconventional relationship between Kourtney, Scott and his girlfriend.

Khloé invites her ex to True's first birthday party. Khloé decides to throw Kourtney a birthday party, but Kourtney's anxiety about turning 40 threatens to ruin the celebration. Kim receives a devastating medical diagnosis that could change her life.

After an uncomfortable confrontation with her ex at True's first birthday, Khloé must figure out how to coexist with her ex. Kim accuses Kourtney of copying her style. Kim searches for answers regarding a frightening medical diagnosis.

Kourtney and Scott seek parenting advice, but Corey's input causes an argument. Khloé plans a wine-tasting trip to Napa to check in with Kylie. The family is fed up with Kim's new intense security protocol, so they take matters into their own hands.

Kim gives the world an intimate look into the busiest week of her life as she prepares for the birth of her fourth baby, stars in a music video with Paris Hilton, and heads to the Met Gala. Kourtney feels violated when she realizes someone close to her family has been stealing from her.

After the birth of her son Psalm, Kim plans a surprise vow renewal ceremony; when Kourtney's friends can't get along on a girls trip to Turks and Caicos, she must assert herself to salvage the vacation.

When Tristan starts showering Khloé with gifts, she worries his grand gestures are an effort to win her back; after Kim and Kourtney learn that people are being sickened by toxic waste in a nearby community, they vow to help.

When Kris is at a sexual peak in her relationship, she feels guilty Khloé is going through a dry spell and tries to push her to date again. Scott panics over an upcoming speaking engagement.

Khloé wrestles with whether to send her daughter to Cleveland to visit Tristan. Kylie considers undergoing a scary medical procedure. Scott and Khloé plan their next prank on Kris that will top all previous pranks.

During a whirlwind week of birthdays, Khloé and Kim plan an epic surprise to celebrate Corey. Khloé must choose between freezing her eggs and making embryos with her ex. Kim races against the clock to help an incarcerated man whose execution is days away.

After months of tension among the sisters, Kris plans a getaway to Palm Springs for her daughters to bond, but a major fight between Kendall and Kylie derails the trip. When Scott accidentally destroys one of Kris’s priceless antiques, he enlists Mason to help him with the coverup.

Khloé feels pressured to make a decision about her romantic future with Tristan. Scott heads to a treatment center to work on his health, but is betrayed when the facility leaks photos of him. The family finds creative ways to celebrate each other’s birthdays in quarantine.

Scott faces some big decisions about his relationship while Kim prepares for a test that will determine her career as a lawyer.

Kim and Khloé think old flames are brewing between Kourtney and Scott and take it upon themselves to set them up on a romantic date. The Kardashian girls challenge the Jenners to an obstacle course to determine once and for all which side of the family is more athletic. Kris and Corey agree to abstain from sex as an experiment for Poosh.

Kourtney sets boundaries with her Poosh team when the line between business and friendship becomes blurred; Caitlyn reaches out to Kris for some help with a business venture.

The family makes a big decision about the future of the show and reflects on how "Keeping Up with the Kardashians" will truly be an end of an era. Kris goes on a girls’ trip to decompress from the decision.

While planning an over-the-top birthday surprise for her mom, Kim questions whether she is cut out to be a lawyer. Kourtney comes up with a plan to catch Kendall in a lie.

The family buries a time capsule to commemorate their years on Keeping Up. Kim updates the family on her future, Khloé must decide whether to move to Boston to be with Tristan and Kourtney finally gives Scott some clarity about their romantic future.