Michelle Aguilar

America's vote is revealed and the third finalist is announced; one of the finalists is named this season's "Biggest Loser"; a sneak preview of season seven.

It's the last episode before the season finale, and time for the final four contestants to reflect on their weight loss journeys and the amazing progress they've made. They'll try on their former "big" clothes and watch highlight videos with their trainers showing just how far they've come. Then, in their final challenge of the season, the contestants will have to carry all the weight they have lost as they race around a track, shedding one week's weight loss at each pit stop until they cross the finish line. Later, at the final weigh-in, two players fall below the yellow line, and then make their heartfelt pleas to viewers as America will once again decide which of the two will become the third finalist at the season finale.

It’s a week of surprises for “The Biggest Losers,” and the first is the news from host Alison Sweeney that they’ll start competing as individuals now instead of as teams. Then comes the surprise return of all the eliminated contestants, and the revelation that only one gets to return to the game - and that decision won’t be determined by weight loss. Then the contestants get a surprise visit from last season’s “Biggest Loser” - Alison Vincent! Later, two contestants clash in a big way before the challenge, in which contestants have to stay one step ahead of the competition - literally. And after the weigh-in, the players get their last surprise - a twist in how this week’s elimination will go down. Trainers Bob Harper and Jillian Michaels star.

This week, the contestants are left in the dark - literally - during a wild baked goods temptation, with the winner gaining considerable power that could completely change the competition. Later, host Alison Sweeney wakes the contestants up to gather them for the challenge, which will last from sun up to sundown - the longest challenge in Biggest Loser history. One contestant struggles with a decision about whether to stay at the ranch or go home, and then an elimination round sends another contestant packing. Trainers Bob Harper and Jillian Michaels also star.

It's all about families in the new edition of The Biggest Loser, which features four husband-and-wife teams and four parent-adult child teams trying to lose weight through diet and exercise as they compete for a grand prize of $250,000. Trainers Bob Harper and Jillian Michaels fly around the country, surprising their teams with the news they've been chosen for the show. Then it's off to The Biggest Loser ranch in California, where the contestants get a wake-up call from the show's doctor about what ages their bodies really are vs. their chronological ages because of obesity. Then the eight teams compete in their first challenge -- and the lucky winner gets immunity from this week's elimination. Alison Sweeney hosts the hit weight loss series.