Season 4

June 5, 2013

The cooks must create a healthy meal for over 300 school children.

June 5, 2013

The cooks must prepare a dish using mystery box ingredients, which include cod; two contestants are sent home.

June 12, 2013

The cooks prepare a steak meal for firefighters; the challenge losers cook eggs benedict.

June 12, 2013

Four cooks prepare burger dishes at Gordon Ramsay BurGR in Las Vegas.

June 19, 2013

A mystery-box challenge involving foreign ingredients takes place; chef Lidia Bastianich judges pasta dishes.

June 19, 2013

The contestants prepare a meal for the cast and crew of "Glee." Jane Lynch, Cory Monteith and Matthew Morrison serve as judges.

June 26, 2013

The contestants deal with a mystery-box challenge that involves an unusual ingredient and a limited pantry; Season 3 winner Christine Ha surprises the chefs.

June 26, 2013

A meal is prepared for a wedding party.

July 10, 2013

Restaurateur Eva Longoria selects Mexican-inspired ingredients for a mystery box challenge.

July 10, 2013

The contestants must prepare fish tacos for hungry surfers; in a pressure test, contestants must prepare a perfect chicken breast three different ways.

July 17, 2013

The nine remaining contestants make sausage link dishes using a sausage maker, with the winner choosing the ingredient to be used in the canned versus fresh challenge.

July 24, 2013

The cooks compete in an overnight challenge; the losing team faces a spun sugar dessert pressure test.

July 31, 2013

The cooks create dishes inspired by loved ones; tag-team sushi challenge.

August 7, 2013

Previously eliminated contestants get the chance to get back in the competition by perfectly frying an egg and preparing a salmon dish.

August 14, 2013

The cooks must prepare a T-bone steak dish; the challenge winner assigns a type of poultry to the other contestants.

August 21, 2013

The cooks must re-create popular dishes served at a fine-dining restaurant in downtown Los Angeles; the losing team must prepare a perfect plate of fried calamari with a side of marinara sauce.

August 28, 2013

The judges are joined by their sons, who help critique a mystery box challenge; re-creating a dish.

August 28, 2013

Two cooks advance to the finals while the remaining three face a pressure test.

September 4, 2013

The cooks split into two teams for the mystery box challenge.

September 4, 2013

The remaining three contestants cook more sophisticated versions of the dishes they made in their initial auditions.

September 11, 2013

The final two cooks prepare three-course meals; the judges choose the winner.