The competing chefs encounter obstacles while making 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 ancient 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.