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.
In the second week of competition, the white team...
After weeks of intensive competition and hard work, one contestant earns the title of "The Biggest Loser".
In their last week on the ranch, the contestants must battle to stay above the red line and avoid automatic elimination before the live finale episode.
The five remaining contestants get to show off their new looks to their family at home.
It's "Face Your Fears" week, and the fear of leaving the ranch is the first one addressed when a "save your neighbor" challenge determines which contestant has to leave the ranch and go out on their own for the week - along with another player of their choice.
The contestants are flying solo now, but they must still learn to work together.
David talks about his experiences on Season 15 of The Biggest Loser.
In their final week on the ranch, Bob reminds Jeff that he can be a source of inspiration for everyone around him, even his celebrity fitness trainer.
Take a closer look at one of the new trainers on The Biggest Loser, Brett Hoebel!
Season 10's Tina talks about the biggest surprise on the ranch.
Laura updates everybody on her injury.
Season 9's Sam and Stephanie interview Patrick at this season's finale!
This 27-year-old tattoo artist explains the symbology and strength of his tattoos.
Get to know this season's Black team.
Season 4 player, Julie shares her secret to keeping the weight off.
Bob talks about the new group of players on season 11's Biggest Loser.
Tom talks about who he is most proudest from the show.
Abby discusses the importance of balancing friendships and her new healthy journey.
Get to know Rulon and John from season 11's The Biggest Loser.
The celebrity stylist and host of Style Network's "How Do I Look?" takes the contestants on a Beverly Hills shopping spree!
Veteran trainer Bob talks about what's on deck for an exciting new season of The Biggest Loser!