Watch Biggest Loser S07E07 - Contestants Learn to Work Out Without the Use of the Gym 

This week, the contestants hike up a hill to find over 100 keys, but only two teams will find the keys that unlock the Biggest Loser gym. The rest of the teams have to learn to creatively work out all week without the use of the gym
Keywords: the biggest loser, funny, humor, excercise, reality