After showing pictures of the chefs (along with the staff and Ramsay himself) in their teenage years, Ramsay announces for that night's service, he is hosting his youngest daughter Tilly's Sweet 16th birthday party.
To test the teams' communication and teamwork skills, Ramsay gives them 40 minutes to cook five entrees from the menu.
For their next challenge, both teams have to make a dish using potato as the main ingredient, and have to collect plastic body parts from Mr. Potato Head to collect their ingredients.
During the challenge, each team is tasked with cooking halibut seven different ways for Michelin star chef David LeFevre.
Families of the four remaining chefs visit. The chefs must base a dish on a secret ingredient hidden in a gift chosen by them.
The chefs must instruct some famous athletes to make their signature dishes using only verbal instructions. The contestants cook in one kitchen during dinner service.
The all-stars face three difficult challenges for the coveted black jacket.
The all-stars are given $20 to buy ingredients for restaurant-quality pasta dishes.
The remaining contestants must prepare a five-course meal for a private charity event.
The remaining contestants compete in a special challenge involving sea creatures.
The contestants must create a dish using exotic meats including boar, venison and elk that were eaten by early humans.
Both teams must replicate six Hell's Kitchen entrees while kicking chefs out of the kitchen until only one remains. That night, Chef Ramsay holds a special challenge.
The final two chefs prepare for their final service.
After two chefs are eliminated, the remaining chefs must create a unique dining experience for a large group of well-known chefs that include guest judges Bruce Kalman, Steve Samson, Mette Williams and Alessio Biagini.
The remaining chefs are challenged to create their dishes with only six ingredients.
Chef Ramsay shakes things up and introduces a series of three challenges that will determine the recipients of black jackets.
The chefs pair up for a challenge in which they must combine two countries' flavors to impress the guest judge, Roy Yamaguchi.
The chefs pair up for a taste challenge in which the winners receive Vitamix blenders and a special trapeze lesson on the Santa Monica Pier.
The chefs are challenged to make sliders for three burger aficionados.
The remaining chefs prepare for their next challenge: a blind taste test during which each team must determine the taste of pureed baby foods.