This week kicks off with a pop challenge in which contestants have to estimate the length of a mile. The winning team gets a night out on the town, Hollywood style, while the other players have to stay behind and clean the ranch. Later, the teams race to light up a "Biggest Loser" board in a challenge that gives a stiff penalty for the losing team - no votes at the elimination. Then one trainer gets shocking news at the weigh-in, and after an emotional elimination, host Alison Sweeney delivers some very exciting news to the contestants.