'The Biggest Loser' preview: NBC plays dirty


From the promo for Tuesday's (March 8) episode of "The Biggest Loser," the players are going to get emotional. What's new, right? Here's something, it looks like they're going to get dirty, too.

The teams will have to cross a mud pit while staying balanced on small round steps and they're not allowed to touch the mud!

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But even harder than that, they're doing a pop challenge with 13 tiered cakes. Now, that's just mean, NBC.

"The Biggest Loser" airs Tuesdays at 8 p.m. ET on NBC.
Photo/Video credit: NBC