![The Biggest Loser](https://image.tmdb.org/t/p/w300/x0K6dW4POXMrZyGd3zeS39qHdQP.jpg)
The Biggest Loser - Season 12 Episode 4 Week 4
Contestants from past seasons return to inspire the current players; after a challenge where the teams battle the elements, the winners receive a special bonus prize; contestants face elimination.
- Genre: Reality
- Studio: NBC
- Keyword: competition, overweight, obesity, exercise, weight loss
- Cast: Erica Lugo, Steve Cook, Bob Harper