The weight-loss battle continues at home with engaged couples Steve and Sarah and Edwin and Rasha. Not only do the couples have to continue the lifestyle change that they learned at the ranch, but they also must plan their wedding days. Before one couple wins the grand prize of a $50,000 dream wedding, they will encounter many surprises along the way including a visit from a season one contestant. The couple with the highest percentage of weight loss will be the winners.

The Biggest Loser: Special Edition 'Families' episode continues in the second hour when both the 'Little Italy Family' and the '50's Diner Family' return to face their previous lives of fattening foods. Both families are thrilled when they discover new gym equipment and refrigerators filled with healthy food right in their own homes. Tension breaks out between trainers Bob and Jillian and their respective families when disappointing results and unhealthy decisions surface. One family member gets some exciting news that changes her life and after the final weigh-in, one family walks away with $50,000.