Keeping Up With The Kardashians
"KUWTK" Katch-Up: 1901
Khloe Kardashian transforms into mama Kris again to pull off her best prank yet. Plus, Kourtney makes a new discovery about the family.
Kim's original plans for her 40th b-day have been canceled, and the Kadashian-Jenners come together to pay tribute to her best "KUWTK" moments.