5.4/10 by 25 users
Bob and Kim prepare their teams for this week's challenge: racing up the stairs of a 10-story building. With immunity as the prize, both teams will have to do their best. Meanwhile, the secret black team, trained by Jillian Michaels, is finally revealed to the other contestants, who will join them in competing for the title of "The Biggest Loser" and $250,000.
- Released: Jan 01, 1970
- Runtime: 00:90:14 minutes
- Genre: Reality
- Stars: Erica Lugo, Steve Cook, Bob Harper
- Network: NBC
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Se-4 Ep-1. Back to Basics 2007-09-11
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Se-4 Ep-3. The Pressure of Temptation 2007-09-25
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Se-4 Ep-4. Bidding Wars 2007-10-02
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Se-4 Ep-5. Surprise Getaway 2007-10-09
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Se-4 Ep-6. Lively Beach Competition 2007-10-16
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Se-4 Ep-7. Weigh-In Shocker 2007-10-23
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Se-4 Ep-9. Biggest Losers Go Green 2007-11-06
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Se-4 Ep-10. A Taste of Home 2007-11-13
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Se-4 Ep-11. Memorable Makeovers 2007-11-20
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Se-4 Ep-12. Viewers Choose the Challenge 2007-11-27
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Se-4 Ep-13. A Slice of Temptation 2007-12-04
