All you need is a pair of sneakers! Twelve overweight people set off on the walk of a lifetime! It's an epic, life-changing journey that begins at the starting line for the Boston Marathon and ends in Washington, DC. The contestants and their two charismatic fitness trainers, Steve Pfiester and Lorrie Henry, will walk over 570 miles, passing through nine states, with the goal of shedding unwanted pounds and getting fit along the way in an attempt to permanently alter their lives. In addition, they all will compete for a prize pool of $1.2 million. Stressing team work, the more people who finish, the more money each person wins, on Fat March, premiering MONDAY, AUGUST 6 (9:00-10:00 p.m., ET), on the ABC Television Network.

During each leg of the excursion there are "luxury reward challenges" where an individual or team can win incentives such as spa treatments, low calorie gourmet meals prepared by a private chef or deluxe accommodations for the night to help them on their trip. There are also amazing prizes at stake, such as get-aways to Hawaii and Las Vegas. The challenges are geographically specific to the area contestants are in. At the elimination, participants are able to expel a group member who is holding them back from reaching the finish line in the allotted time. However, eliminating a fellow competitor has a price: $10,000 is deducted from each competitor's potential prize money with each elimination.

Executive producer is Nick Emmerson. Co-executive producers are Julie Laughlin and Kirsty Robson. The production company is Ricochet (Supernanny). Fat March is based on the British series, Too Big to Walk. A TV parental guideline will be posted closer to airdate.