The first team to untangle their rope, wins. The prize: access to the gym for the week. The red team flew through the challenge and won the challenge. Black team has no gym access for the week. As the black team has their first workout outside, Bob & Jillian notice the strange energy and ask the team about it. Hannah states that she feels like the black team is viewed as the underdogs and she doesn't like that - she doesn't want to be viewed as weak. Bob reminds them that the black team crushed the red team at the weigh in - the black team is not weak. Despite not having access to the gym, the black team has a strong workout. As the red team is working out in the gym, Cara pushes Rulon and he doesn't like it. The two go outside to have a discussion and he tells her that his past is his past and he refuses to talk about it. She tries to explain that what happened in his past has a large role in why he got to 500+ pounds. He tells her that he isn't ready to talk about it with her and she tells him she's not giving up on him. The teams meet at night for the weekly challenge. Allison informs them that the challenge will have each team push a 24-ton train 800 feet. Throughout the challenge, they will have to answer 6 trivia questions. Each train is filled with a bag of food that represents an answer to those questions. They will need to throw out the right bag of food for each question. A wrong answer will result in 15 seconds being added to their time. The teams go one at a time and the one with the fastest overall time wins. The winning team gains the ability to pick a player from the other team whose weight loss will not count for the week. The black team goes first. Because they have an extra player, they sit out Deni. Olivia and Marci are in the train car answering the questions while the other players are pushing the train car. Arthur can't keep up and ends up running behind the train. The black team has a finishing time of 2:05. The red team starts. They have Kaylee and Jen in the train answering the questions and all of the guys pushing. They have a finishing time of 1:35. The black team had 4 wrong answers for an additional minute added to their time making it 3:05. In order for the red team to win, they just have to get one answer right. They had 5 wrong answers which added 1:15 to their time making it 2:50 and they won the challenge.