Alison Sweeney ("Days of Our Lives") returns as host 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 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. Contestants work out under the supervision of professional trainers Jillian Michaels and Bob Harper.

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 five titles currently. The show also has four top-selling fitness DVDs and a "Biggest Loser" meal plan available for home purchase, as well as a burgeoning online lifestyle club www.thebiggestloserclub.com.