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