Plot Synopsis

Two or three teams of contestants lose weight under the guidance of trainers as each competitor gets a new lease on life and tries to avoid elimination while competing for the chance to win the grand prize of $250,000. Starting with the fifth season, each season has its own theme, including: Couples (Seasons 5, 7, 9, 11); Families (Season 6); Second Chances (Seasons 8 & 15); Pay It Forward (Season 10); Battle of the Ages (Season 12); No Excuses (Season 13); Childhood Obesity (Season 14). Glory Days/former athletes (Season 16). The past winners are:
Season 1: Ryan Benson
Season 2: Matt Hoover
Season 3: Erik Chopin
Season 4: Bill Germanakos
Season 5: Ali Vincent
Season 6: Michelle Aguilar
Season 7: Helen Phillips
Season 8: Danny Cahill
Season 9: Michael Ventrella
Season 10: Patrick House
Season 11: Olivia Ward
Season 12: John Rhode
Season 13: Jeremy Britt
Season 14: Danni Allen
Season 15: Rachel Frederickson
Season 16: Toma Dobrosavljevic

For THE BIGGEST LOSER's 17th season -- which premiered on Monday, January 4, 2016 from 9-11pm ET/PT on NBC -- Bob Harper, the longtime BIGGEST LOSER trainer is the new host of the series, while continuing to offer his training expertise to contestants at various points throughout the season. Dolvett Quince and Jennifer Widerstrom also returned for the 17th season, training eight contestant teams of two in a return to team versus team competition. The new season, THE BIGGEST LOSER: TEMPTATION NATION, kicks off with contestants arriving at the ranch and getting on treadmills lined up outside the gym. Once they're all moving, Bob has the eight contestant teams of two choose wealth -- or their health, offering $25,000 to any team who wants to call it quits and go home. But if they resist the temptation, they'll be welcomed in to the gym, where trainers Dolvett Quince and Jen Widerstrom choose their own teams. Later, after a grueling first workout, in which one contestant quickly butts heads with her new trainer, the contestants meet with Bob for a very raw and emotional 'rehab' session. One by one, they reveal what led to them coming to the ranch and to their health spiraling out of control. Then it's time for the season's first challenge in which contestants race up a ladder to the top of a tall building in downtown Los Angeles. The first team to finish faces another money temptation -- choosing between a cash prize of $40,000 or an 8 lb. advantage at the weigh-in. Then Dolvett's red team and Jen's black team weigh-in on side-by-side scales to see the results of their hard work before two players fall below the dreaded yellow line and one is sent home. In addition to the new host, gym, theme and format changes, the new season of THE BIGGEST LOST will also feature Season 16 BIGGEST LOSER trainer Jessica Pavelka returning in a special online role. He will be sharing his fitness expertise exclusively across NBC digital platforms to help viewers at all stages of their fitness journeys. From effective exercises that target trouble areas to great 10-minute workouts easy to fit into a busy schedule, to advice on working around injuries or without the use of a gym, Jessie will motivate and energize viewers to get and stay in shape, with exclusive videos shared on nbc.com and other NBC digital platforms every week of the new season.
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NBC premiered the Season 17 finale of THE BIGGEST LOSER on Monday, February 22, 2016 from 9-11pm ET (live)/PT (tape). In the two-hour live finale, the 16 contestants from this season return for a special reunion and a chance to weigh in one last time and show America how much weight they've lost since beginning their weight-loss journeys. Those who have been eliminated compete for the $100,000 "at home" prize. Then, one of the three finalists -- Stephen Kmet, Roberto Hernandez and one of Colby Wright or Jacky Kmet -- is named this season's "Biggest Loser" and wins the coveted grand prize of $250,000.