In this heartbreaking episode of "Keeping Up with the Kardashians," witness a more serious side of the Kardashian clan as they celebrate their deceased dad Robert Kardashian, who passed away four years ago from esophageal cancer. Time may have passed, but the loss is still a struggle for the Kardashian kids, especially Khloe, who starts to spiral out of control as the anniversary of her dad's death nears. She begins to fight with her family (yes, even more than normal!) and drinks to drown away her sorrows. Kris reaches out to try and help her daughter get to the root of her problem, but is it too little too late? Plus, see what happens when Khloe attempts to drive after a night of heavy drinking and gets pulled over for a DUI. Will this finally be her wake-up call? Watch and see.