Expect the ultimate in brainy, zany baskets from Alton Brown, as four Challenge champions return to fight for $50,000! Ingredients harken back to the themes of the preliminary battles: molecular gastronomy, smoke, dehydration and fermentation. In the first round, a small fish and a strange condiment puzzle the champs. A stunningly-presented protein and a jar of something stinky are in the entree basket. Finally, Alton makes a grand entrance in the dessert round to demonstrate the science of one of the ingredients, before an unprecedented turn of events.