Blake Benge

Former athletes, including Olympians and professional football players, try to get back in shape and change their lives.

As the trainers and contestants get to know each other, one player refuses to discuss what led to her weight gain; the contestants race through an obstacle course carrying a punching bag; Dr. Huizenga meets with the players; weigh-in.

Contestants from this season reunite and reveal how much weight they've lost; the at-home winner is revealed; the grand-prize winner is announced.

The challenge winners get to sideline a member of the opposing team; the players must air race across a canyon and put together a puzzle.

Super Bowl champions Michael Irvin, Donald Driver and Willie McGinest work with the contestants during a football challenge; a contestant is sent home for good.

A lottery determines which contestant goes home with their trainer; two eliminated contestants vie for a chance to compete for one more week.