Khloé's ex-husband Lamar releases a memoir; an old rumor resurfaces and Kris worries that it will spark a fight between her and Khloe; Kim is nervous to speak at a live press conference at the White House.

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 Kardashian-Jenners sit down with Andy Chen to revisit some of the most talked-about moments and unanswered questions from all 20 seasons of "Keeping Up With the Kardashians."