Jennifer Jacobs

A ball challenge that turns out to be much harder than it looks gives the winning team a big advantage at this week’s weigh-in, which is especially valuable given that both a red line and a yellow line will result in two players going home. Trainers Bob Harper and Jillian Michaels try to teach their contestants to push beyond the limits they’ve set for themselves, while trainers Cara Castronuova and Brett Hoebel take their team for an intense workout at a Mixed Martial Arts gym owned by contestant Rulon Gardner’s former trainer, retired UFC heavyweight champion Bas Rutten. Then a weigh-in filled with surprises is followed by two contestants leaving the ranch. Alison Sweeney hosts the series.

It's Valentine's Day on the ranch, and host Alison Sweeney ushers the contestants into a room full of chocolate candies for a holiday-themed temptation. Whoever eats the most chocolate will have the option to trade two players on their team for two players on the other - or to keep the teams the same, and the winner will be a secret. But as teams are divided into red vs. black, the winner's choice causes upset in the house. Later, a five-part relay race challenge tests the players' endurance, speed, agility, strength and knowledge. Trainer Jillian Michaels takes one contestant horseback riding, and one team gets to enjoy heartwarming videos from home before a weigh-in results in a Biggest Loser record being broken and another player heading home.

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.

The two teams of contestants are all tied up this week -- literally -- in a rope challenge in which teamwork will determine which group of players will get to use the gym this week, and which team will have to be creative and find other places at the ranch to work out. One trainer moves into the house to try and get a contestant to open up, and later, one team wins the chance to block someone's weight on the scale at a wild physical and mental challenge that finds them pushing a train 800 feet while answering food fact questions along the way. Then one player reaches a milestone at the weigh-in before another contestant is eliminated and sent home. Alison Sweeney is the host, and Bob Harper, Jillian Michaels, Cara Castronuova and Brett Hoebel are the trainers.

Two new trainers and a compelling new twist deliver a game-changing season like nothing viewers have seen before when season 11 premieres with twenty-two contestants -- eleven family and friend teams of two. After the first challenge, contestants are given 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 and get four weeks of immunity. What ensues is a riveting ride of intense emotions, surprising turns and "can't miss" moments as the two groups fight their weight loss battles separately with two sets of trainers equally committed to giving these players a new lease on a healthier life. The contestants include an Olympic gold medalist, identical twin policemen, a pastor who wants to spare his overweight son from the challenges he faced because of obesity, and a woman who has lost pregnancies because of her weight and wants more than anything to be a mother. Alison Sweeney hosts the series.