The Biggest Loser - 11 ª Season

The contestants will compete in a challenge and then get to make a game-changing decision in the order in which they finished. Host Alison Sweeney will offer the eleven family and friend teams of two the unprecedented opportunity to choose whether to work out with trainers Bob Harper and Jillian Michaels at the ranch - or work out at a secret location with two unknown trainers, whose identities will initially remain a mystery. If the contestants choose the new trainers, whom they know nothing about, they'll receive four weeks of immunity. If they choose to stay at the ranch and be trained by Bob and Jillian, they're at risk of going home after just one week.

The mystery trainers find out the weigh-in results from Bob and Jillian's teams and discover their teams are doing better.

The "unknown trainers" are finally revealed, and both will share their personal stories that led them to "The Biggest Loser." Their contestants, "the unknowns," confront one player they feel isn't working hard enough, and later, "the unknowns" and the ranch contestants square off for a pop challenge. The winning player from each group will get a delicious healthy dinner prepared by Chef Curtis Stone, and compete for a coveted 2 lb. advantage at this week's weigh-in. Later, Dr. Huizenga gives "the unknowns" startling news about their health, and one player is surprised to learn they have the highest percentage of body fat in the group. Meanwhile, trainers Bob Harper and Jillian Michaels single out a few of their contestants to find out what really led to their weight gain, and then the ranch contestants meet host Alison Sweeney for a water-carrying challenge that will give the winner the sole vote at this week's elimination. Later, a surprising weigh-in -- which results in shocking numbers for one team -- disappoints the trainers in a big way, leading to the elimination of one player they feel isn't ready to go home.

There is much discussion among all on the ranch after the last weigh-in when both Dan and Don gained nine pounds, and Dan was eventually voted off the ranch. Although Don denies that he and Dan threw the weigh-in as a sign of "giving up", Bob and Jillian are certain he and Dan did. The on-ranch contestants participate in the ultimate temptation challenge in facing the specific foods that are their individual weaknesses. The winner of the challenge gets to choose the team that will train with Cara and Brett for the week off the ranch. That team finds the off campus training has some good and not so good elements. That team returns to the ranch for a reward challenge, which combines knowledge of their weakness foods once again and a test of strength. The rewards end up having an emotional effect on the winners.

After four long weeks, the "unknowns" move to the ranch and are reunited with the other contestants, who get to meet the new trainers for the first time. Host Alison Sweeney explains that the ranch contestants will be safe this week if they collectively lose more than 48 pounds, but for the "unknowns," they will be facing their first elimination all season. And both teams only get to see their trainers once this week. The "unknowns" experience some surprises while settling into their new home, and a secret is revealed about how one contestant has lost so much weight. A challenge involving weights shows which team stacks up to be the best, and later, everyone weighs in and finds out whether one or two players will be going home.