Anne Burrell and Michael Symon are back with more thrills, chills and grills as four ghoulishly disastrous Worst Cooks recruits return to boot camp for Halloween redemption. The recruits once again face their fears in the kitchen and tackle terrifying ingredients. With coaching from Anne and Michael, they create a spooktacular feast for a panel of culinary experts. Will their meals be a deadly delight or a graveyard fright? The winning team will walk away with a $5,000 kitchen upgrade and culinary redemption.

To start off their final week in boot camp, the remaining recruits go grocery shopping for ingredients to create dishes using everything they've learned. Then chefs Anne Burrell and Michael Symon teach their final two recruits how to make a three-course, restaurant-quality meal. For the last challenge, the two finalists put all their skills to the test in order to impress a panel of culinary experts. Judges Einat Admony, Cliff Crooks and Sohla El-Waylly evaluate the recruits' dishes in a blind taste test and choose the winner of the $25,000 prize.

The teams of recruits compete in boot camp's first "Tour de Petit Four" to get acquainted with different types of desserts. They must ride scooters around a French-themed obstacle course collecting ingredients to create elaborate dessert platters. For the main dish challenge, chefs Anne Burrell and Michael Symon teach the recruits how to make classic French eclairs. The recruits with the most faux pas will compete in the blind elimination challenge, where they have just ten minutes to make tarts, and the recruit with the worst dish must say au revoir.

The recruits arrive to find boot camp transformed into an airport, and chefs Anne Burrell and Michael Symon welcome them to "Worst Cooks Air" to set off on an exploration of international flavors. First is a flavor-pairing game followed by a skill drill challenge where recruits go head-to-head with the opposing team making international appetizers. For the main dish challenge, the teams touch down in Spain and make meat and seafood paellas. The blind elimination challenge has the bottom recruits making tapas, and the recruit with the worst dish is sent packing.

Worst Cooks puts the "camp" in boot camp as the teams of recruits play a culinary scavenger hunt and then must cook dishes using only camping equipment and utensils. Chefs Anne Burrell and Michael Symon up their game for the main dish challenge by teaching the recruits how to smoke and grill game meats. The least successful recruit on each team must compete in a blind elimination challenge that tests their grilling skills, and the recruit with the worst dish has to hit the trail and head home.

Boot camp is transformed into the Las Vegas Strip, and although the recruits had to cash out early in their seasons, this is their chance to finally hit the jackpot! The teams go head-to-head in a series of casino-themed culinary challenges. Then, after winning some "cheddar" in the money booth, chefs Anne Burrell and Michael Symon challenge their teams to make gourmet grilled cheese sandwiches. For the main dish challenge, they dive into the deep end and make high-end seafood dishes. The bottom recruits on each team must compete in a blind elimination challenge, and unfortunately it's the end of the line for one competitor.

The best of the worst recruits are back in boot camp for culinary redemption. Anne Burrell and her newest competitor, Michael Symon, welcome eight returning recruits eager to finally master the kitchen. The chefs start off with a culinary time trial to see who has improved and who has reverted to their old, disastrous ways. Then Anne and Michael have the recruits remake the dish that sent them home. After teams are chosen, the recruits are tasked with replicating their chef's dishes, which includes butchering whole ducks, and the recruit with the worst dish is sent home.