Mike Danley

This week, the contestants learn that the gym will only be open three times a day, and each team will only have one two-hour time slot daily to work out. A donut temptation will help determine which team gets what slot, and then players have to learn to squeeze in their daily workouts just like in real life. Dr. Huizenga meets with contestants and their trainers for some sobering news about their medical conditions, and one player is shocked to learn what his real inner age is -- and that he is the sickest person at the ranch. Then all the teams use their weight to move a ball through a maze over water in a wild challenge that proves to be way harder than it looks. Later, another player is sent home after the weigh-in yields a very surprising number for one contestant. Host Alison Sweeney stars along with trainers Bob Harper, Anna Kournikova and Dolvett Quince.

One player is chosen to go home this week with their trainer, and get the coveted prize of immunity. But the prize doesn't look quite as desirable when the chosen contestant learns that their weight will be the only weight that counts for their team this week. Meanwhile, the players left at the ranch race through a maze to fill a large cylinder with soda in a night challenge that gives the winning team a great -- pay it forward -- prize. While the trainer who left the ranch devises grueling workouts for their player and worries about the fractured team they left behind, another trainer gets angry with a contestant who is constantly hiding behind humor. And one player boldly confronts her trainer about the way she is being treated. Later, another contestant is sent packing after a tense weigh-in reveals whether the player who went home lost enough to keep their team safe. Alison Sweeney hosts the series, and trainers Bob Harper, Anna Kournikova and Dolvett Quince also star.

In this must-see, exciting live finale, the contestants from this season return for a special reunion and a chance to weigh in one last time - and show America how much weight they've all lost since beginning their weight-loss journeys. Those who have been eliminated will compete for the $100,000 "at home" prize. Then it's the moment viewers have been waiting for, when one of the three finalists will be named this season's "Biggest Loser" and win the coveted grand prize of $250,000! Alison Sweeney hosts the series, and trainers Bob Harper, Anna Kournikova and Dolvett Quince also star.

This week, only one contestant's weight will count for each team, and trainers Bob Harper, Anna Kournikova and Dolvett Quince get to choose which player will represent their teams. The competition heats up with a cooking challenge in which players and their trainers have to race against the clock to prepare a healthy and delicious low-calorie dish for two special judges -- Season 11 "Biggest Loser" winner Olivia Ward and "Biggest Loser" cookbook author Devin Alexander. Prizes for the winning team include something very special from home. Dr. Huizenga drops by with a special medical guest to visit with the players and give one contestant some very welcome news. And later, the weigh-in reveals whether each trainer chose the right person to represent their team before an elimination leaves one player feeling very betrayed. Alison Sweeney hosts the series.

The contestants start their week with a holiday food temptation involving Thanksgiving favorites and amazing prizes, including a coveted 3 lb. advantage. Later, trainers Bob Harper, Anna Kournikova and Dolvett Quince prepare a healthy Thanksgiving dinner for the players, and everyone shares what they are most thankful for, with one trainer sharing a surprising revelation. Then it's the toughest challenge of the season so far with an outdoor, one-mile high climb on Jacob's Ladder treadmill climbers. The top finishers win special prizes with a "Pay it forward" twist. Later, one contestant does something considered uncharitable by the others, leading to friction at the elimination table before another player is sent home. Alison Sweeney hosts the series.