Alton Brown goes hog-wild with his second Chairman's Challenge. The remaining chefs present their dishes to judges Anne Burrell and Iron Chef Jose Garces, who eliminate one competitor.

The competitors face ingredients that require them to be both fast and adaptable. Iron Chef Marc Forgione and Giada De Laurentiis judge the dishes and send one chef packing.

Testing their ability to turn the ordinary into the extraordinary, the Chairman's Challenge assigns each competitor a classic one-two flavor combo. Judges Ali Bouzari and Iron Chef Cat Cora determine who stays and who goes.

Alton Brown tests the remaining chefs' creativity by having them pare down their ingredients. Judges Iron Chef Alex Guarnaschelli and Ching-He Huang determine which elite competitor moves forward to the finale.

The last chef standing runs the three-round gauntlet against legendary Iron Chefs Bobby Flay, Masaharu Morimoto and Michael Symon. Judges Anya Fernald and Ludo Lefebvre decide if the finalist becomes an Iron Chef.

The competition begins when seven chefs are forced to show their resourcefulness by using a single protein in as many ways as possible. Two chefs then fight to avoid elimination in a Secret Ingredient Showdown.

The six remaining chefs craft innovative sandwiches during the Chairman's Challenge before two front-runners face off in a Secret Ingredient Showdown featuring a colorful root vegetable.

The five remaining chefs prove their versatility by taking on dishes from Thailand, India, Spain, Greece or Japan. Two chefs then face a tough Secret Ingredient Showdown using game meat.

The final four chefs create an inventive breakfast for the Chairman's Challenge before a Secret Ingredient Showdown featuring shellfish sends one chef home.

The Chairman's Challenge narrows the field from three to two when chefs are forced to create dishes from two difficult ingredients chosen by someone else. The final two chefs then compete in the last Secret Ingredient Showdown.

The last chef standing faces insurmountable odds as they cook their way through the three-round Gauntlet against Iron Chefs Alex Guarnaschelli, Stephanie Izard and Michael Symon.