Season 9 Episodes19
Cast3

Bob Harper
Self

Alison Sweeney
Self - Host

Jillian Michaels
Self
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Ranked #6 of 19 in Season 9•+0.2 vs season avg
The contestants assume the role of either teacher or student; a challenge grants immunity to the winning team; a contestant threatens to quit the competition.

Bob Harper
Self

Alison Sweeney
Self - Host

Jillian Michaels
Self
0 comments
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Share your take and reply to other fans.
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"Week 3" is episode 3 of The Biggest Loser season 9. It scored 6.8/10 from 13 votes, ranking #6 of 19 episodes this season (season average 6.6). It aired on January 19, 2010.