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The Biggest Loser US
The Final Four Contestants face their toughest challenge yet, running a marathon.
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The Biggest Loser US
"The Biggest Loser" is revealed in the exciting Season Finale.

The Biggest Loser US
15 ordinary people will attempt something extraordinary, fight to get fit.

The Biggest Loser US
The contestants are divided in 3 teams, based on their ages and then raced to choose between the trainers.

The Biggest Loser US
For today's challenge they will be competing as individuals

The Biggest Loser US
The Biggest Loser fan favourite alumni return to share their expertise

The Biggest Loser US
This week, one of the contestant will be going home for the entire week

The Biggest Loser US
Things on the red team, get hot and heavy with Ramon and Jessica's new relationship

The Biggest Loser US
After 6 weeks, a shakeup at the ranch is happening.

The Biggest Loser US
The contestants struggle to adapt to their new trainers

The Biggest Loser US
They will be competing in a pentathlon

The Biggest Loser US
The remaining 6 contestants walk into the kitchen to find it filled with plates of tempting Thanksgiving food.

The Biggest Loser US
It's the final week on campus, and the contestants hike up a hill to meet Alison

The Biggest Loser US
The final four are going home!

The Biggest Loser US
It's the finale. Together, the 15 contestants have lost nearly a ton.

The Biggest Loser US
Celebrate Thanksgiving with the Where Are They Now? Special.

The Biggest Loser US
During the first challenge, the contestants race up a giant sand hill and join one of the 3 new teams of 6

The Biggest Loser US
The first team to break down barriers and obstacles gets to “knockout” another team from the gym for the week

The Biggest Loser US
Ten Couples arrive at The Biggest Loser Ranch. However, one team will be sent home immediately.

The Biggest Loser US
The teams bet how much they think their team can lose during the week.

The Biggest Loser US
The theme is “Face-off,” the players are paired with someone on the other team

The Biggest Loser US
Buddy leaves temporarily because his wife is giving birth, but he has to return for the weigh-in.

The Biggest Loser US
The Aqua team returns to weigh in for their spot on campus.

The Biggest Loser US
The losing team at this week's challenge will have zero access to their trainer all week.

The Biggest Loser US
The excuse of the week is “I’ll Start After The Holidays”.

The Biggest Loser US
This week’s theme is “I Lack Self Control”.

The Biggest Loser US
The contestants go home for 18 days to confront all of their old excuses.

The Biggest Loser US
Alison tells the contestants that they will switch trainers to get them out of their comfort zone.

The Biggest Loser US
From this week on, each person competes as an individual.

The Biggest Loser US
This week's excuse is "I Can't Lose Weight On Vacation”.

The Biggest Loser US
This week’s excuse is “Exercise is Boring”.

The Biggest Loser US
All three teams compete in 2 challenges this week in an attempt to gain pound advantages at the weigh in.

The Biggest Loser US
A contestant will be representing their team on the scale at the end of the week

The Biggest Loser US
This week's challenge has all three teams racing to pull themselves across a large Canyon by wire and pulley.

The Biggest Loser US
This week is part one of Makeover Week.

The Biggest Loser US
In the second part of makeover week, the contestants travel to the White House.

The Biggest Loser US
The remaining five contestants threaten to leave the ranch.

The Biggest Loser US
The fourteen eliminated contestants return to compete for a spot in The Biggest Loser finale.

The Biggest Loser US
The eliminated contestants return to find out who will win the $100,000 at-home prize.

The Biggest Loser US
Fifteen brand new contestants, hand selected by the trainers, come to the Ranch as individuals.

The Biggest Loser US
At the challenge the contestants discover 3 large dice, each representing a team.

The Biggest Loser US
Ali gives each team 500 dollars in "Biggest Loser Bucks" for their very first "Biggest Loser Auction".

The Biggest Loser US
It’s Halloween at The Biggest Loser Ranch and the contestants must face their very first temptation.

The Biggest Loser US
The kids are back! The teams participate in a cooking challenge to impress the White House’s own Sam Kass.

The Biggest Loser US
At the end of the weigh in, the teams walk into the house to find Ruben who is back in the competition!

The Biggest Loser US
It’s Thanksgiving, the team that wins the challenge will get a visit from their family members.

The Biggest Loser US
The spin of a wheel determines which one contestant goes home for the week with their trainer.

The Biggest Loser US
The week begins with a pop challenge at a local Diner. The contestants must answer trivia questions.

The Biggest Loser US
The contestants will now be competing as singles! In addition, this week there's a double Red Line.

The Biggest Loser US
The eliminated contestant with the highest percentage of weight loss is back in the competition.

The Biggest Loser US
The contestants will be spending the week training where champions have competed, at Olympic Park in Utah.

The Biggest Loser US
After a gruelling mud run challenge, the contestants get a new hairdo and a new wardrobe.

The Biggest Loser US
The contestants compete in the Biggest Loser Triathlon. The winner gets an automatic spot in the Final 3.

The Biggest Loser US
All contestants return to reveal their incredible transformations live on stage.

The Biggest Loser US
Eight couples arrive on the ranch,and the new host, Bob Harper, tells them the season is all about Temptations

The Biggest Loser US
It's Temptation as contestants consume as many calories as they can. The one who eats the most wins Immunity

The Biggest Loser US
This week, Jessie takes Lori to a softball field to get back her inner Olympian.

The Biggest Loser US
One contestant from each team has their own lane on a giant treadmill hovering over a pool of water.

The Biggest Loser US
Three NFL Legends, Willie McGinest, Donald Driver, and Michael Irvin, join the BL Ranch for the week.

The Biggest Loser US
This week, the players must confront a Temptation that’s played a huge part in why they’re on the show: Food.

The Biggest Loser US
The contestants must confront a temptation we all face every day: digital distractions

The Biggest Loser US
After 5 weeks of grueling competition, the players are presented with an enticing Temptation: Luxury!