A quick rundown of this week's installment:

- Arthur revisits his decision from last week with his father.

- The teams compete in a pop challenge: a rope competition to keep their rights to the gym for the week and the red team wins.

- The red team takes advantage of their new treadmill access, and the black team works out on their spin bikes outdoors.

- Cara calls out Rulon, making him work harder than anyone else and he resists.

- The teams have to move a 24 ton train a mile.

- The Red team loses the weigh in, and sends Jay home.