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. Later, a rowing machine challenge pits team against team, and then a surprising turn of events leads to one contestant heading home.
click here to see where to watch or .
Ready to Watch The Biggest Loser, Season 7, Episode 7?