Following the recent eliminations, the teams must balance out, and a member of one will move to the other. Then, the chefs tackle sliders for their challenge. The chefs are later introduced to three guest judges - Adam Fleischman, the founder of Umami Burger; Sang Yoon, the chef and owner of Father's Office; and Christina Wilson, the executive chef of Gordon Ramsay's BURGR - who will all determine which team gets to party at the Playboy Mansion and which team gets stuck cleaning up the LA River. Later, the teams try to impress celebrity guest diners, including 2009 Playmate of the Month Crystal Hefner, "Fashion Police" executive producer Melissa Rivers, TV hosts and producers Drew and Jonathan Scott and actress Ashley Green. However, a tough dinner service for both teams ultimately leads to a shocking elimination.