M8, T2: It's week two at the ranch, well known as one of the hardest weeks on "The Biggest Loser" to lose big numbers on the scale. So contestants are surprised when host Alison Sweeney tells them they'll all get to stay on the ranch another week - if they lose a certain amount of weight. Hoping to help in their quest is Chef Curtis Stone, who meets them at the California Health and Longevity Institute for a "kitchen boot camp" designed to help them make healthier food choices. Then all the contestants have to rely on each other for a balancing challenge that tests their ability to work together. And later, the weekly weigh-in will reveal whether all the players meet the required weight loss goal to stay another week - or whether two players will be sent home. Trainers Bob Harper and Jillian Michaels also star.