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 first team to break down barriers and obstacles gets to "knockout" another team from the gym for the week

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

That corresponding contestant home for the week with their trainer. That contestant will be representing their team on the scale at the end of the week

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

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

This week, Jessie takes Lori to a softball field to get back her inner Olympian. The challenge causes quite a splash as trainers face getting dropped from BL style diving boards into an Olympic-sized pool.

At the challenge, one contestant from each team has their own lane on a giant treadmill hovering over a pool of water. When a contestant can't keep up they fall off into the pool.

Three NFL Legends, Willie McGinest, Donald Driver, and Michael Irvin, join the BL Ranch for the week. It begins with a football themed challenge where the prize is video chats from home.

Week 10 starts with a surprise when a game of chance reshuffles the teams. Sonya struggles when she is forced to leave Team Jen and workout with a new trainer.

Its All For One week! Red, White and Blue become one team and collectively they must lose 50 pounds to avoid sending someone home at the end of the week.

It's Playoffs week! For the rest of the season all contestants will compete as Singles. After Alison hands out their new colored jerseys, they head to the gym for their first workout as individuals.

The contestants head to Kauai for two weeks of extreme adventures and intense competition. Their journey begins with a hardcore workout on one of Kaua'i's most picturesque beaches

It's New Years Day, and what better way to celebrate than with extreme Kauai adventures? The week kicks off with another grueling workout in paradise.

It's Makeover Week! Fashion icon, Tim Gunn and celebrity stylist, Ken Paves return to The Biggest Loser to give the remaining contestants a complete makeover.

Bob returns to the Ranch with his Comeback Canyon contestant to compete for a spot in the Final 4

It's the last week on the Ranch and whoever survives the next weigh in will become a finalist with a chance to win The Biggest Loser title at the Live Finale.

All 20 contestants return for The Biggest Loser Live Finale! One of the eliminated contestants will win the $100,000 At-Home prize, and one finalist will win $250,000 and the title as The Biggest Loser.