The Biggest Loser Season 15 Episode 4 November 5, 2013 News, The Biggest Loser The Biggest Loser Season 15 episode 4 airs Tuesday November 5 2013 on NBC at 8 pm. Episode Synopsis: The Biggest Loser Season 15 Episode 4- It’s Halloween at the ranch, and that means a pumpkin challenge and the contestants’ first temptation of the season. Off the players go into a field of 100 pumpkins filled with candy treats, cash prizes and a winning ticket giving one lucky player one of the biggest prizes ever awarded in a challenge – immunity for their whole team. Later, one trainer brings a special group of people to work out with his team, while another trainer has a heart-to-heart talk with a contestant about their challenging childhood. “The Biggest Loser” catches up with last season’s child ambassador, Biingo, to see how his life – and the lives of his family members – have changed since he was on the show. And later, the players get a motivational boost with coveted letters from home before heading to the weigh-in, where another player is eliminated. Click Any Photo Below To Enlarge Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pocket (Opens in new window)