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.

"The Biggest Loser: Families" is a production of Reveille LLC, 25/7 Productions and 3Ball Productions. Ben Silverman (NBC's "The Office," "Ugly Betty"), Dave Broome ("A Model Life with Petra Nemcova," "Tsunami Aid: A Concert of Hope"), JD Roth ("Age of Love," "Beauty and the Geek"), Todd A. Nelson ("Unan1mous," "Beauty and the Geek") and Mark Koops ("American Gladiators," "Shear Genius") serve as executive producers.