Justin Pope

Twenty-two contestants, composed of 11 pairs of family and friends, get the choice of working out with Bob and Gillian or with two unknown trainers at a separate location.

The ranch-based contestants attempt to lose a higher percentage of weight than the unknowns in order to get immunity; Dr. Huizenga talks to the contestants about their health.

The contestants are tempted by their favorite food; the winners of a calorie-counting challenge receive letters from home; Jillian Michaels puts Bob Harper through an intense yoga session.

The unknown trainers are revealed and share their personal stories; two contestants compete for a two-pound advantage at the weigh-in; a water-carrying challenge.

The contestants return home for two weeks to spend time with their loved ones and navigate the diet challenges of the real world; the players compete in a 5k challenge; another player goes home.

The "unknowns" are reunited with the other contestants at the ranch; the teams face a challenge involving weights.