The Biggest Loser: Season 4

The biggest winner is "The Biggest Loser" in Season 4 of this compelling weight-loss reality competition series in which three celebrity fitness trainers, Bob Harper, Kim Lyons, and Jillian Michaels, join with top health experts to help 18 overweight contestants transform their bodies, health and ultimately, their lives.

Biggest Loser Season 4

Alison Sweeney ("Days of Our Lives") hosts the fourth season of the series, which challenges and encourages overweight contestants to shed pounds in a safe and recommended manner through comprehensive diet and exercise as they compete for a grand prize of $250,000. The unscripted and life-altering one-hour reality series gathers contestants from across the country to face real-life temptations, while being provided with approved weight-loss skills and resources in an effort to help them transform their bodies, health -- and ultimately -- their lives.

In Season 4, Jillian Michaels returns to train the "Black team", one of three 6-player teams this season. All 18 competitors will encounter unique physical challenges, surprising alliances and irresistible temptations make the competition tough for the contestants, who ultimately have to decide which player gets eliminated each week.

In the end, "The Biggest Lose"" becomes the biggest winner, walking away with a healthier body - and $250,000.

The series has become a worldwide hit airing in over 90 countries and produced in 25 countries. It has produced a New York Times best-selling book series with four titles currently and a fifth book slated to hit stands in March 2008. The show also has two #1 selling fitness DVDs as well as a burgeoning online lifestyle club www.thebiggestloserclub.com.