The Biggest Loser

Inspiring contestants, including the show's first celebrity player, Ruben Studdard, an uplifting "second chances" theme and powerful new roles for the trainers highlight Season 15.

A roll of the die determines whose weight will count at the weigh-in.

Contestants bid on gym equipment in the show's first ever auction.

Contestants race through a pumpkin patch looking for one of the biggest prizes ever awarded in a challenge.

Contestants compete in a fun cooking challenge with last seasons's Kid Ambassadors and White House nutrition expert Sam Kass.

It's a busy week at "The Biggest Loser" ranch, which kicks off with a fun bouncing ball challenge that will award members of the winning team a welcome cash prize.

Contestants pay it forward with a special Thanksgiving challenge, and the winning team gets a holiday dinner with loved ones.

One contestant goes home with their trainer, and has to lose enough weight to keep their whole team safe.

One team goes back to work - in a Diner.

The competition goes from teams to singles.

This week kicks off with all of the eliminated contestants returning to weigh-in, and one lucky player getting the chance to return to the competition.

Contestants train like athletes at Utah Olympic Park and meet Olympians Apolo Ohno, Lolo Jones and more.

Fashion Guru Tim Gunn and celebrity hairstylist Ken Paves guest star in the "Fan Favorite" makeover episode.

The last five players compete in the show's first ever sprint triathlong to win a guaranteed spot as a finalist - and a brand new car.

"The Biggest Loser" revealed in exciting Season Finale.