It's a night of culinary experiments, modern techniques and out-of-this-world plating when Guy Fieri brings four food scientists to Flavortown to showcase their molecular gastronomy skills. In the first round, Guy gives the chefs the basic ingredients of a hamburger and asks them to flip it into a modern dinner. Next, the chefs must make a twist on an American classic with restrictions dictated by the Food Pyramid. Then, in the final round, the chefs can only shop in either the odd or even aisles when making their wow-worthy dish for a $20,000 payday!