Eliminated contestants receive a second chance. Plus, NASCAR driver Carl Edwards surprises the contestants.
The contestants face challenges in the form of overcoming Valentine's Day treats and reunions with their family members.
Former boxer Laila Ali puts the contestants through a fun and challenging workout.
The trainers make a surprise visit to the homes of three contestants.
The contestants play a game of trivia with questions based on childhood obesity studies.
This year's group of contestants, including 15 adults and 3 children, begin their quest to lose weight.
Previously eliminated contestants vie for a place in the finale.
Another contestant is sent home.
The contestants travel to Hawaii to face a new set of challenges.
With the teams dissolved, the nine remaining contestants are now on their own.
The remaining contestants go home for eighteen days.