Several aspiring chefs compete for the coveted title of "Top Chef" while they creatively whip up a storm to escape elimination.

Actor Sarah Levy joins Kristen and Gail for the Quickfire Challenge, tasking the chefs to put their spin on Canada's famous poutine; for the Elimination Challenge, Daniel Boulud joins the judges' table as the chefs team up to create a brunch.

The chefs must make their own version of a Jamaican patty as a Quickfire Challenge and create dishes best served cold or risk elimination.

Actor Michael Cera joins Kristen in the kitchen for the Quickfire Challenge, where the chefs' trivia skills are put to the test; for the Elimination Challenge, the chefs must put their own spin on some of Canada's most iconic confections.

The chefs are taken by surprise when a Last Chance Kitchen chef joins the competition; the chefs' collaboration skills are put to the ultimate test as this time is a double elimination.

Top Chef Masters alum Susur Lee and Jet Bent-Let join Kristen for the Quickfire Challenge, where the chefs must create a dish using a limited amount of ingredients; for the Elimination Challenge, the chefs must create dishes that highlight pickles.

For this week's Quickfire Challenge, the chefs must create a dish with an ingredient using only the toughest stains as their clues. Then, in a high-stakes pizza party, the chefs must create pies that are outside of the box to impress guest judges Michelin star chef Wylie Dufresne and Top Chef All-Star alumn Spike Mendelsohn, who join Kristen, Tom and Gail at the judges' table.