The competing chefs encounter obstacles while making kitchen sink vegetable soup, Philly cheesesteaks and molasses cookies.

Firefighter chefs compete in challenges revolving around chili-cheese fries, buffalo chicken sandwiches and flambé.

Two chefs rumble on Greek rubble; the blind lead the blindfolded in a seafood risotto challenge; and a head-to-head battle is nothing but monkey business.

Grandmothers face obstacles, one of which involves an afghan. Also: cooking a casserole with a torch.

Breakfast tacos are served to guest judge David Alan Grier. Also: two chefs get hitched; and the final round features a ride on the CTK Express.

Gumbo ingredients are tossed from a balcony in one challenge. Also: one chef must work around the clock; and white-chocolate macadamia drives the two finalists nuts.

Obstacles include a trio of funky pans, a seesaw and the perfect napoleon.

Halloween is celebrated when the chefs make wraps that only a mummy could love. Also: they take on a ghoul-ash challenge, which turns gruesome; and the final round involves lots of candy.

A chef draws a sword during a Monte Cristo challenge. Then, it's not exactly the lab of luxury for one chef. Finally, rocky road really lives up to its name.

Guest judge Susan Feniger tastes fish sandwiches. Also: a chef is forced to ride a bucking bronco; and someone gets sent up the river, while making Mississippi mud pie.

Manhattan clam chowder proves tricky. Later, a chef gets shell-shocked by their opponent; and the heat is on in the final round.

Two chefs dive headfirst into a ceviche challenge; somebody gets a raw deal from the Half-Cooked Café; and cookies are made with laser-sharp precision.

Four members of the Armed Services square off to make steak and eggs. Then, it's tanks but no tanks to one chef; and finally, three cheers for a red, white and blue dessert challenge.

The secrets to surviving even the most wicked sabotages are revealed. Included: tips and tricks to outmaneuver the competition, impress the judges and become the last chef standing.

Chefs are asked to overcome major obstacles and acts of sabotage in this reality competition.

Chefs are asked to overcome major obstacles and acts of sabotage in this reality competition.

Chefs are asked to overcome major obstacles and acts of sabotage in this reality competition.

Chefs are asked to overcome major obstacles and acts of sabotage in this reality competition.

Chefs are asked to overcome major obstacles and acts of sabotage in this reality competition.

Chefs are asked to overcome major obstacles and acts of sabotage in this reality competition.