Jonathan Bennet celebrates 2002's "My Big Fat Greek Wedding" by having the chefs transform moussaka for guest judge Nia Vardalos; the competitors turn sushi waffles into equally viral-worthy dishes and see whose mac and cheese wins them $10,000.

Jonathan Bennett heads back to 1994 with guest judge Wayne Knight as they challenge the chefs to create elevated dishes using '90s foods and an iconic grill; the competitors struggle to re-create accordion potatoes and a classic beef Wellington.

Jonathan Bennett challenges the chefs to make dishes using ingredients synonymous with the 1970s, but a fondue pot throws the new school chefs for a loop; the competitors take on Japanese soufflé pancakes and their own version of chicken Kiev.

Jennie Garth, star of 1993's 90210, helps Jonathan Bennett celebrate all things '90s with a fruity drink and dunkable cookies. Then, it's go small or go home as the chefs tackle trendy tiny foods before two chefs mix things up.