Thierry Rautureau

The chefs must cook while instructing a mystery guest on the other side of a divider, and the chefs mentor culinary students without participating in the cooking process.

The chefs take part in an underground dining event, and create picnic-style meals for the first "Diner en Blanc" in Las Vegas.

The chefs compete in a boxing ring to win $10,000, and serve food to boxing champion Sugar Ray Leonard.

The final two chefs face their last challenge, and put their skills to the test as they create dishes based on four letters.

The chefs prepare dishes for the Indigo Girls, and attend an upscale pool party hosted by Holly Madison.

The chefs create an aphrodisiac dish, and the chefs create their own Thai restaurants while Dita Von Teese joins them as a guest judge.