The contestants of Season 15 return for the live finale, and one of the three determined finalists will be crowned The Biggest Loser.
The contestants compete in the first Biggest Loser Triathlon, and the three finalists are determined after this week's weigh-in.
The contestants meet with stylists Tim Gunn and Ken Paves to get new styles for their new looks.
The contestants travel to Park City, Utah to train with world-class athletes at the Olympics training center.
The eliminated contestants return to the ranch for a second chance to get back into the competition.
The competition moves to singles, and a double red line means that two players are headed home after this week's weigh-ins.
The contestants participate in a trivia challenge, and the losing team must work in a diner for the entire week.
One team's fate rests on a single contestant sent to work out at home with their trainer.
The contestants participate in a food drive challenge, and the winning team receives a much-needed visit from a family member.
Ruben returns to the ranch, and his Red Team finally triumphs in the season's most entertaining challenge so far.
The contestants compete in a challenge to create delicious, healthy meals for the Season 14 Biggest Loser kid ambassadors.
The contestants must scavenge through a pumpkin patch in search of immunity, but temptations lurk around every corner.
The contestants are only allowed to use gym equipment they've "purchased" in an auction.
The contestants compete in their first challenge of the season, and the weigh-ins result in the first elimination of Season 15.
Fifteen new contestants arrive on the Biggest Loser Ranch to receive a second chance at life.
Fifteen inspiring contestants, including the show's first celebrity player, Ruben Studdard, an uplifting "Second Chances" theme, and fun, new creative elements ignite Season 15 of NBC's popular series "The Biggest Loser". Alison Sweeney hosts the series featuring charismatic trainers Bob Harper, Jillian Michaels and Dolvett Quince, who have helped contestants lose over 26,600 pounds collectively during 14 seasons of the motivational show.
Season 10's Tina talks about the biggest surprise on the ranch.
Jillian reflects on Season 14 and the finale.
Tears at the weigh-in move everyone at the Biggest Loser ranch.
Abby discusses the importance of balancing friendships and her new healthy journey.
Get to know this season's Pink team.
Chelsea talks about when she first heard she would be coming to the ranch.
Check in with Daris by watching their weekly personal video blog.
Season 9's Sam and Stephanie interview Mark at this season's finale!
Get to know this season's Green team.
Get to know this season's Blue team.
Get to know Rudy from this season's Biggest Loser. Tuesdays, 8/7c
Bill talks about being this season's Biggest Loser!
Get to know Sean from this season's Biggest Loser. Tuesday, 8/7c
Celebrity Hair-stylist Ken Paves talks about how much being apart of the Biggest Loser means to him.
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