Host Alton Brown and the Chairman welcome the remaining five chefs to Las Vegas on the CityCenter promenade and present them with a test of inspiration. World-champion pastry chef Jean-Phlippe Maury meets the contestants in a pastry kitchen with his dessert showpiece collection and reveals chocolate as their secret ingredient. The contenders must then create a wedding-worthy chocolate dessert. For the Chairman's Challenge, the chefs prepare a buffet inspired by the modern Las Vegas surroundings in just three hours, with the threat of a double elimination adding to the pressure.