Bryan Voltaggio

The final five travel to Italy, where the chefs must make an aperitivo for 30 locals from the town of Lucca that pairs perfectly with a Peroni beer. Then, they hunt the elusive white truffle which they must use in a dish for a Tuscan food festival.

The contestants take over chef Rick Moonen's restaurant `Seafood' while he serves as their guest judge.

Contestants visit "Craft Steak" in Las Vegas to cook for actress Natalie Portman and friends, meanwhile other cook using the theme `TV Dinner'.

Tom makes his final decision from "Last Chance Kitchen" on who should return to the competition; the chefs take off in a Quickfire with Padma and Jonathan Waxman making a two-course business class dish for an airline.

The chefs create meals inspired by Los Angeles's unique taquerias, food trucks, mom-and-pop cafes, upscale eateries and ethnic cuisine.

Kelly Clarkson drops into the 'Top Chef' kitchen for a Quickfire based on her new movie, "Trolls: World Tour," where the chefs are tasked with combining colorful ingredients from six different musical lands to make one delicious dish.