NBC announced today the eight families – eight teams of two -- who will be competing in "The Biggest Loser: Families," premiering Tuesday, September 16 (8-10 p.m. ET). Alison Sweeney (NBC's "Days of our Lives") hosts the popular series, and trainers Bob Harper and Jillian Michaels also star.

It's all about families in season six of "The Biggest Loser," which features four husband-and-wife teams and four parent-child duos trying to lose weight through diet and exercise as they compete for a grand prize of $250,000. Harper will train the spouses, while Michaels trains the parents and their adult children.

With the focus on families comes more emotion and drama than ever before, as contestants share their compelling stories, including a mother and daughter who were estranged for over five years before going on the show, newlyweds who want to get healthy so they can have kids, a father with more life-threatening health issues than any contestant in the history of the show, and parents who want to get healthy to be better examples to their kids – including their overweight four-year-old daughter who already outweighs their seven-year-old son.

For the first time in the history of "The Biggest Loser," contestants will learn they've been chosen for the show directly from Harper and Michaels, who fly all over the country to surprise contestants in their hometowns with the exciting news. Then it's off to "The Biggest Loser" ranch in California, where the contestants get a wake-up call from the show's doctor about what ages their bodies really are vs. their chronological ages because of obesity. Then the eight teams compete in their first challenge -- and the lucky winner gets immunity from the first elimination of the season.

The new teams competing for the $250,000 grand prize are:

Parent-child teams:

Renee Wilson (Event manager), 46, and her daughter, Michelle Aguilar (Assistant director), 26, Ft. Worth, Texas.

Tom Desrochers Sr. (Cab driver), 42, and his son Tom Desrochers Jr. (Cab driver), 22, Everett, Massachusetts.

Shellay Cremen (Stay-at-home Mom), 51, Royal Oak, Michigan and her daughter Amy Cremen (Purchasing department representative), 26, Auburn Hills, Michigan.

Jerry Skeabeck (Police sergeant), 51, and his daughter Coleen Skeaback (Receptionist), 23, Cleveland, Ohio.

Husband-and-wife teams:

Ed Brantley (Chef), 31, and his wife, Heba Salama (Pharmaceutical sales representative), 30, Raleigh, North Carolina.

Brady Vilcan (Pharmacist), 36, and Vicky Vilcan (Anesthetist), 37, Houma, Louisiana.

Adam Capers (Contracts manager), 39, and his wife, Stacey Capers (Contract pricing analyst), 33, Gainesville, Virginia.

Phillip Parham (Real estate agent), 41, and his wife, Amy Parham (Real estate agent), 40, Greer, South Carolina.

"The Biggest Loser: Couples" 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.