Season 7 finds the players competing as pairs. From grandparents to best friends to former plus-sized models, this season will have plenty of firsts, with the oldest participant (63-year-old) and the heaviest (379 lbs.- female and 454 lbs.-male) in the shows history.

This week, the contestants are faced with a temptation that will cause each of them to examine the real reason they've come to the ranch. Then it's off to an outdoor challenge, where they'll race by sea kayak and then on foot to the top of a mountain, hoping to win immunity as well as a coveted phone call home. Later, one contestant pushes trainer Bob Harper to the limit, causing him to freak out during last chance workouts before a surprising weigh-in leads to a heartbreaking elimination.

One contestant will win a chance at having a personal trainer in his or her very own home. Elsewhere, the players receive a progress update from Dr. Huizenga after three weeks, and the winner of the jump rope competition receives this weeks immunity.

Tommy Brown is a gospel singer with a domineering wife who is blackmailing him into giving concerts, the proceeds of which are being placed into a fund for the building of a Tabernacle. Eventually, Tommy decides to rid himself of his wife. An accomplished pilot he arranges an accident in which his wife is killed. He is able to parachute to safety. Columbo is suspicious, as usual, and must use all of his ingenuity to solve this near-perfect crime.

The contestants make their return to the ranch and have a weigh in to access their progress while at home. The players then get an update from Dr. Huizenga on how well they are doing with their health and then are challenged to a jump rope contest. A pair of challengers clash over their progress.

A balancing test will win one contestant a 24 hour visit from a loved one. Later, the teams are challenged by a test of their endurance before the next elimination round.

The contestants are challenged to climb a steep hillside and find the two keys which are located near the top that opens the doors to a gym on the ranch. Those who can not find a key must work out on their own without the use of a gym. Later, the teams go head-to-head in a rowing machine competition.

In the conclusion, the contestants are given a test on aging and health. The player's then have a lost chance to exercise before their weigh-in.

The contestants get schooling on how to choose a healthy meal while at a restaurant from Rocco DiSprito, who then prepares them a special meal for the team which is named winner of a cook-off challenge. Later, the players get a boxing lesson from legend Sugar Ray Leonard, and then the contestants are challenged to pack and load kits for the food bank.

Today's weigh-in may be effected by the surprise challenge. Later, the players will compete in a relay race with the winners being rewarded with a day of luxury and spa treatments, but a few players are sucked in by temptation during the challenge. Also, one challenger finds himself at odds with a trainer.

The contestants get to spend one week at home, and must run a half of a marathon and choose healthy food choices. Later, the competitors are challenged with a cookie temptation, and a weigh-in will show how well they did while at home.

A challenge featuring NASCAR's Clint Bowyer has the contestants pulling cars which have been filled with extra weight assigned by their teammates. Later, all the teams are dissolved and the players will now all be on their own. Also, a player sets a record for the most weight lost at the weigh-in.

Previous winners Ali Vincent and Michelle Aguilar take over the hosting duties from Ali Sweeney at the ranch. Elsewhere, the competition is changed by the addition of new arrivals; a medical setback befalls one player; the contestants are suspended over a pool in a balance challenge; and Bob holds last chance workouts at the beach.

The players are given a risky temptation challenge while hoping to get the sole vote at elimination. Later, the contestants get a lesson from Rocco DiSpirito on how to cook healthy versions of restaurant meals at home. Also, a pair of former contestants return to offer up their advice; and players are challenged to scale steps at a stadium.

Tim Gunn, Tabatha Coffey and Brandon Martinez assist in giving the remaining players a makeover. Elsewhere, an injury will hamper one of the woman with her workouts, and the contestants reach new heights in the challenge.

The players have a chance at winning a trip to New York by taking part in a health related quiz. Later, the contestants will have their shopping choices critiqued by Bob and Jillian; the players take a balance challenge; and someone reaches a milestone at the weigh-in.

The players are challenges to create a workout for Bob and Jillian. Also, the contestants will carry bags uphill which contain the same amount of weight as they have lost so far. Later, Dr. Huizenga updates their real ages; the players try on their goal clothing; and the players spend 30 days at home before being weighed in for the final time at the ranch.

The players each return to their homes for a 30 day period to learn on their own how to keep a healthy lifestyle while away from the ranch. A return to the campus finds the competitors set for their final challenge: racing in a full marathon. The final weigh-in reveals the final two players, plus two players compete for the third spot.

The final four contestants go home for 30 days, reunite with friends and family and experience firsthand the challenge of continuing to make diet and exercise a priority back at home. Contestants also learn from host Alison Sweeney what their final challenge of the season will be - running a full marathon when they return to the ranch for their final weigh-in.