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16 Episodes
S5 E1 - They Got Fat Together, Can They Get Thin Together?
S5 E2 - Contestants Face Barbecue Temptation and Giant Seesaw Challenge!
S5 E3 - Tensions Run High As This Week's Challenge Causes Rifts Among Players
S5 E4 - One Outcast Duo Squares Off Against All the Rest
S5 E5 - Surprise Escalator Challenge Changes the Game Forever
S5 E6 - Celebrity Chef Rocco DiSpirito Guest Stars
S5 E7 - Special Guest Appearance by Jillian's Mom
S5 E8 - Contestants Reunited With Loved Ones
S5 E9 - One Team Surprised With Trip to Vegas
S5 E10 - Contestants Tackle One of the Biggest Challenges in Show's History
S5 E11 - All Contestants Return to Ranch in Surprise Twist
S5 E12 - Contestants Made Over by Fashion Guru Tim Gunn
S5 E13 - Competition Heats Up With Only Six Contestants Left
S5 E14 - Last Five Contestants Get Surprise Trip to Australia
S5 E15 - Surprise Game-Changing Twist in Last Episode Before Live Finale
S5 E16 - "Biggest Loser" Revealed in Season Finale
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Synopsis
The Biggest Loser: Couples is the fifth season of the NBC reality television series The Biggest Loser. The fifth season premiered on January 1, 2008 with ten overweight couples competing for a cash prize of $250,000. This season featured Alison Sweeney as the host, with trainers Bob Harper and Jillian Michaels; all three returning from season four. Although the contestants came in as teams of two, the grand prize was eventually awarded to an individual. In the end Ali Vincent won, making her the first female winner in the history of the United States Biggest Loser series.
