Chef Irvine heads to Hawaii to cook for the "Lost" cast and crew. He'll have rely on his improvisational skills when he's left at a deserted beach to prepare the gourmet meal using limited tools and ingredients.

Chef Robert arrives in Washington DC at the Newseum. It's none other than Mr. David Gregory from NBC news who delivers Chef Robert's mission: in 8 hours he must prepare a menu for 300 people based on four food events that occurred in American history. Chef Robert must cook dishes that represent WWI food rationing, early Thanksgiving, the creation of TV dinners, and the publication of Julia Child's "Mastering the Art of French Cooking".

All the employees at Philadelphia's Bourse building have taken a vacation day, and Chef Irvine must feed the hundreds of people who come to lunch at the famous food court there by himself. He has all night to prepare, but it may not be enough time because he has to stock and open all seven restaurants with seven very different cuisines.

Robert Irvine ventures to the remote forests of Mackinaw City, Mich., for a seemingly impossible two-part challenge: Create a Paul Bunyan-sized dinner to feed 50 lumberjacks and the only way he's getting help is by sawing, chopping and log-rolling his way to the finish.

Robert Irvine heads to the University of North Carolina to prepare a gourmet meal for 100 students, but he can only use ingredients that are found in their dorm rooms.

Like nothing before, it's David vs. Robert in the ultimate chef vs. chef battle on Palmer Street.

Chef Robert takes a trip to Vermont where he has nine hours to feed 400 of Ben & Jerry's employees with food inspired by 15 of their wildest flavors.

Robert boards the Navy's newest destroyer, the USS Wayne E. Meyer, to receive a mission unlike any other. For the first time on Dinner Impossible, Robert will receive orders to complete two missions in just one day. The brand new destroyer is celebrating its commission week, and the pressure is on Robert to deliver two missions with flying colors.

The weather doesn't cooperate when Robert has to cook an elaborate gourmet meal outdoors using camping equipment.

Robert Irvine arrives on Oahu, Hawaii, with one mission: make a feast without a kitchen for 30 locals, using only produce and proteins he can gather on the legendary Kualoa Ranch. Robert and his team must battle the weather, harvest their ingredients, catch their own seafood and manage an unpredictable underground oven to pull off the impossible.

Robert is heading to Disney World to play the role of Prince Charming for this episode of Dinner Impossible. It's Celebrate Family Volunteers Day at Disney World and Robert's mission is to feed 400 volunteers from across the US. He'll have nine hours to prepare a meal that will make the volunteers feel like royalty. Who better to give Robert ingredients fit for royalty than Disney Princesses?

In Las Vegas, Robert Irvine is tasked with catering three distinct wedding receptions in only six hours. Robert must navigate the obstacles of Sin City and find unique ways to make each couple's culinary dreams a reality, creating a picture-perfect wedding meal in his quest to make this the best day of these couples' lives.

A fund-raising dinner must be prepared on a remote island off the coast of Maine in 10 hours.

To help Sesame Street celebrate its 40th birthday in Langhorne, PA, Chef Robert and his sous-chefs Maria, Elmo, and Cookie Monster must cook up a menu for 250 parents and their children in just 8 hours using only the letter B as inspiration.