Jessica Lewis

Twenty aspiring restaurateurs present their signature dishes to Ramsay -- and an audience -- in Las Vegas; while the challenge winners earn a night out on the town, the losers must head back to Los Angeles on a school bus.

The contestants arrive at the dorms; Ramsay sends contestants out of the kitchen after a rocky first dinner service.

Chef Ramsay puts the contestants through a physical challenge involving lobsters; while the challenge winners enjoy a day on a yacht, the losing team must clean hundreds of pounds of fish; Ramsay is disappointed by a disorganized dinner service.

Olympic athletes Maurice Greene, Natalie Coughlin and Danell Leyva help Ramsay lead a 3K race, with the red and blue teams racing to prepare lunch for the runners; communication issues lead to fights during the dinner service.

Chef Martin Yan judges six Chinese dishes created by the remaining contestants; during dinner service, one team disappoints a VIP guest; a contestant is eliminated.

The teams must identify the type of protein used in five dishes; as the winning team enjoys its victory at a beach house, the losing team must grind and mill grains to make bread from scratch; contestants are grilled during elimination.