The winning chef is named in the Season 4 finale. Before that, the final two culinarians battle it out by creating a dish with the help of staffers from their own restaurants back home.
The ace chefs instruct a mystery guest to make a dish in the penultimate Season 4 episode. Later, they mentor culinary students.
In a task that packs a punch, the chefs step into the boxing ring and serve up cuisine in culinary matches. Former boxer Sugar Ray Leonard is the guest judge.
The chefs create a dish using aphrodisiac ingredients. Later, they launch their own Thai restaurant and revamp classic Thai meals. Burlesque performer Dita Von Teese is the guest judge.
Fred Schneider and Kate Pierson from The B-52's star as guest judges. The chefs are given the challenge of using local ingredients to make a salad bar for the Hualapai tribe in the Grand Canyon. In the elimination challenge the chefs are given some unusual ingredients which they must use to cook something for 24 members of the Hualapai tribe.moreless
Olympic skater Brian Boitano guest judges as the contestants put on a Japanese style cuisine experience. Other judges include Susan Feniger, Mary Sue Milliken, Jonathan Waxman, and Rick Moonen.
After the chefs arrive in Las Vegas, they vie for ingredients – appropriately enough with a card game run by the locals. Next, they use the ingredients to create a buffet for the actors, musicians and other performers on the strip.