Surprise Game-Changing Twist in Last Episode Before Live Finale

They Got Fat Together, Can They Get Thin Together?

Contestants Face Barbecue Temptation and Giant Seesaw Challenge!

Tensions Run High As This Week's Challenge Causes Rifts Among Players

One Outcast Duo Squares Off Against All the Rest

Surprise Escalator Challenge Changes the Game Forever

Celebrity Chef Rocco DiSpirito Guest Stars

Special Guest Appearance by Jillian's Mom

Contestants Reunited With Loved Ones

One Team Surprised With Trip to Vegas

Contestants Tackle One of the Biggest Challenges in Show's History

All Contestants Return to Ranch in Surprise Twist

Contestants Made Over by Fashion Guru Tim Gunn

Competition Heats Up With Only Six Contestants Left

Last Five Contestants Get Surprise Trip to Australia

"Biggest Loser" Revealed in Season Finale