Pressure Builds as 'Biggest Loser' Contestants Struggle to Stay in the Game

The men and women of "The Biggest Loser" are continuing to step outside their comfort zones and step up their workouts as the competition intensifies and emotions run high.

A tearful Mark, 31, says now that's he's physically able to travel, he'd like to spend some quality time with his father who has been battling cancer. "With his health issues, I don't know how much time he has left. You know he's cancer-free now but it could always come back," he opens up to the other contestants. "I want to spend some time with him."

Mark adds, "He definitely inspires me. I want to give him some of that inspiration back."

See who gets to keep working for the big money and who is sent home when "The Biggest Loser" airs Tuesday night on NBC.

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