Old rivalries die hard. Los Angeles Chefs Stefan Richter and CJ Jacobson duked it out on Top Chef Seattle and enter this duel far from friends. Stefan first challenges CJ to cook with smoke, and then CJ asks Stefan to use products that remind CJ of Stefan. . .the backsides of animals. For the Duel, CJ and Stefan go back to nature for a foraging-themed meal to impress celebrity superstar Shailene Woodley and the rest of the judges. The taste of victory will be even sweeter thanks to the bad blood between these two.