The hit series "The Biggest Loser" catches up with some of the series' most popular and memorable contestants from the previous seven seasons, including former winners, contestants who fell in love on the show and got married, and those who are "paying it forward" with new careers in health and wellness. More than 40 contestants from seasons one through seven will be featured, showing how they look now and sharing what they've been doing with their lives since being on the show. The special will follow contestants who continue to take on considerable challenges, from running marathons to competing in triathalons, to those pursuing incredible dreams, including one contestant who has become a country music singer. Former players, some of whom will be surprised by visits from trainers Bob Harper and Jillian Michaels, will also share major milestones, from getting married to having children.