When a disturbing video of Lamar leaks online, Khloe must make a choice about their complicated relationship. Will she accept her best friend and sisters' support? Meanwhile, Scott's been having a hard time with his mom's death and his dad's illness, so Kourtney takes him on a getaway to a spa in Arizona. But Scott isn't the only one who needs to open up. Plus, Rob receives troubling news about his health that has his family concerned.