Watch The Biggest Loser Season 5 Full Episodes

In this must-see, exciting live finale, all of The Biggest Loser contestants from this season return for a special reunion and a chance to weigh in...

In the last episode before the live finale, the final four contestants return from Australia without their trainers and attempt to train themselves...

Since The Biggest Loser is a global phenomenon, the last five players are surprised with a trip to the other side of the globe - Australia! Once...

Only six players are left, and the remaining women try to hold their own against the men who are still in the game. In a surprising pop quiz, one...

It's makeover week, and legendary fashion maven Tim Gunn helps the contestants find flattering new clothing styles and haircuts. Then in this week's...

It's down to the six final contestants, but not for long. In a shocking twist, all fourteen of the players eliminated so far return to the ranch and...

After revisiting the hospital to check in on their progress, the remaining players face off in one of the biggest challenges in "Biggest Loser"...

The competition heats up as only eight players remain. One team is surprised with a special trip to Las Vegas, but will they maintain their diets and...

This week, the remaining contestants are sent home to see their loved ones for the first time since leaving to come to the ranch. But this is no...

It's nearly the halfway point of the season, so the contestants celebrate the occasion with a challenge involving the total of their weight lost to...

This week, the teams compete in a lively cook-off challenge, with celebrity chef Rocco DiSpirito as the judge. The winning team gets a special dinner...

In this week's episode, one team retaliates after being called lazy by another team, and the willpower of the contestants is put to the test during a...

It's win or go home after a surprise elimination pits one outcast duo against all of the others. At the challenge, contestants compete for a prize...

A game of "Elimination," where the last team standing wins immunity for the week, causes rifts in the house, as the remaining eight teams get more...

The remaining nine teams are shocked to learn that Bob and Jillian will be training them all together as one team. Afterwards, the contestants will...

For the first time ever, ten teams of two will compete against each other. The ten teams, including a mother and son, husband and wife, best friends,...