One contestant wins a 24-hour visit from a loved one -- It?s the 100th episode of ?The Biggest Loser,? and this week, a balancing competition will bring the winner a coveted prize ? a 24-hour visit from a loved one back home. Then the teams all take part in a tough challenge that tests their endurance, and later, one player will be sent home from the team that falls below the dreaded yellow line. Alison Sweeney hosts the series, and Bob Harper and Jillian Michaels also star.