The twenty-two contestants - who arrive as teams of two - are introduced, three of whom are the heaviest three contestants ever on the show, and one team which weighs collectively close to half a ton. Their initial weigh-in is held in each's hometown in front of family, friends and other townsfolk. When they arrive on campus and enter the gym for the first time, the contestants are surprised to see it empty, except for twenty-two bicycles. Each team is to cycle collectively 26.2 miles, the equivalent of a marathon. The team to finish the distance first gets immunity from elimination, the bottom two teams who will be asked to leave the campus immediately. However Bob and Jillian are training together, and use the first workout to assess the fitness and personality of each of the contestants. At the first weigh-in, the contestants are weighed as a team. The team with the lowest percentage of weight loss falls below the yellow line. The remaining contestants vote which of the two on that... Written by Huggo

With two couples asked to leave following the bicycling challenge and James being voted off after the first weigh-in, seventeen contestants remain on campus. Jillian and Bob are still feeling out the contestants and try to get to their core issues. Everyone in the gym is feeling the pressure of what is known on the show as the week 2 curse of an extreme drop in weight loss following the first week high. Dr. Huizenga takes each couple aside to demonstrate to them in meaningful ways how their weight issues are negatively affecting their lives. The reward challenge is one of balance and speed, with the ultimate reward for the winner, and the ultimate penalty for the last place team. Extreme fear takes hold of one contestant, which Jillian later helps try and conquer. Going into the weigh-in, the contestants weigh-in as teams, one person from the team with the lowest percentage of weight loss who will be eliminated. Bob calls out one contestant to admit to games playmanship. Written by Huggo

During student-teacher week, the contestants on each team assume the role of either teacher or student. Teachers get to continue working out with Bob and Jillian, but then have to teach what they've learned to their teammates or students, who don't get to work out with the trainers. The student' on each team will be the only one whose weight counts at weigh-in. Acclaimed chef Curtis Stone teaches the contestants about portion control and helps them whip up a healthy chicken cacciatore dish. Written by NBC Publicity

This week starts off with a high-stakes pop challenge in which contestants race for the prize of immunity - and the winning team also gets three envelopes to give to the teams of their choice with instructions that could have a dramatic impact at this week's weigh in. Also, tensions are high between the trainers and one team suspected of game play, and a lifting competition rewards the winning team with a prize that everyone wants. Written by NBC Publicity

At the last weigh-in, Migdalia was voted off campus. The campus is not only down one contestant but two as one is sent to hospital temporarily on a medical issue. But two others ultimately return to campus as the at home challenge given to Victoria and Cherita and Sunshine and O'Neal, which the on-campus contestants did not know about, comes to an end and the four return to campus to weigh-in. Before doing so, they go through what Bob calls the Biggest Loser rite of passage: a last chance workout. The returning team is told that they will receive immunity for the week, but that they are also given ultimate power: the only vote at the week's all contestant weigh-in. During the week, Bob and Jillian each focus in on a few contestants to get to the bottom of their weight issues. The reward challenge is a Super Bowl week football related challenge, with the winning team receiving immunity at the week's weigh-in, the losing team getting a two-pound penalty. Written by Huggo

Having the lowest percentage of weight loss as a team and being a single member team, John, without deliberation, was sent home after the latest weigh-in. Koli is having doubts about himself being on campus, especially as John, who he feels is more deserving, is no longer there. The contestants learn that for this week, they will now be weighing in as individuals as opposed to teams, two contestants will be sent home (the one with the lowest percentage of weight loss, plus one of the next two who will be voted home), and in the spirit of the upcoming 2010 Winter Olympics that they will be training at the US Olympic Training Center much like Olympic athletes do. As a pop challenge, the contestants are required to 500 slides on a slide board (mimicking a speed skating maneuver), with a gold, silver and bronze medal awarded to the top three finishers. Those three get an advantage at the reward challenge, which is styled along the lines of a biathlon. The winner of the reward challenge ... Written by Huggo

After the latest weigh-in, Melissa leaves the campus as the person who fell below the red line. Cheryl and Darrell, the two contestants who fell below the yellow line, complete their one-on-one challenge to see who goes home and who stays. Following, the remaining contestants, who were only last week told they were playing now as individuals, now learn that they will now be placed on teams, however not their original couple partnership, but a blue team trained by Bob, and a black team trained by Jillian. The winner of a temptation challenge has the power to select those teams, as well as select one undesignated person (which may be him/herself) to receive immunity for the week. The person with immunity will ultimately be on the team which loses a player at this week's weigh-in. Without knowing what the temptation challenge is, each contestant has to decide if they want to participate. After making the decision to play, those players have some regrets in that the temptations (... Written by Huggo

After the latest weigh-in, Miggy was voted off campus. O'Neal, replacing Miggy on the blue team, was afraid that SunShine was the contestant voted off. Starting from last week, the teams continue their David vs. Goliath mentality, the black team being David, the blue team being Michael-stacked Goliath which nonetheless lost the previous weigh-in. The contestants immediately learn their reward challenge for the week: pulling a 33,000 pound semi-trailer truck and putting together a puzzle at the finish line. The reward challenge is quickly dispensed of as, for the week, the contestants are moving back to something resembling real life. They will commute by bus to and from a job - volunteering for Feeding America at the Los Angeles Regional Food Bank - working an eight hour shift each day. In addition, like real life, they must think about what they will eat during their work day, and the gym will only be open for certain hours, meaning that they only have a limited amount of time to ... Written by Huggo

This week, the blue team squares off against the black team in a food trivia pop challenge that will send the winning team via limo to a day of pampering and luxury while the losing team has to stay behind and clean up the kitchen and the gym! Then popular chef Curtis Stone stops by to help host Alison Sweeney judge a food cook-off challenge. Each team has 30 minutes to make an appetizer, entrée and dessert using only 12 ingredients, and the team who wins the taste test gets a big advantage at this week's weigh in. Then an emotional elimination round sends another player home. Written by NBC Publicity

After the previous weigh-in, Sherry was voted off campus. The remaining contestants learn that Sherry is not the only one going home - all the contestants are going home for one week. Michael in particular is relishing this opportunity to visit with his ill grandmother. Waiting for each contestant at home are two boxes and a DVD on which Alison explains what they are to do with the boxes' contents. They involve in combination a reward challenge and a temptation. Beyond the challenge, the pressures of real life weigh-in on the minds of some more than others. Will those stresses translate into this week's weigh-in? Written by Huggo

With Lance voted off the last weigh-in, he is sent home. Or is he? All the contestants who have previously been voted off campus, with the exception of Migdalia who is dealing with a personal issue at home, are back, one of whom will be invited back on campus, that person to be chosen purely by vote of the on-campus contestants. The only rule is that one cannot vote for their own family member. After the invited player is named, Alison announces one last challenge for one of the off campus contestants to get back on campus. The challenge opens up old wounds between various players. Both returning players receive immunity for the week. All the contestants also learn that they are no longer in teams, but are now competing as individuals. The two returning players and being back to singles brings up issues in the contestants' minds. Written by Huggo

The competition heats up when the players learn that whoever loses 2% of their body weight first this week gets immunity. The catch is that only one person gets immunity and they only get one shot to weigh in whenever they think they've reached that goal. Later, the players head to the pool for a swimming challenge involving weights. After each contestant finishes the race, they are allowed to go back and help others finish, which proves very revealing about who the players want to stay in the game -- and who they don't. Written by NBC Publicity

Melissa was voted off campus at the latest weigh-in. The remaining contestants learn this week about the value of money in relation to their weight. They have a pop challenge of balancing quarters on a tray, the last contestant standing to receive forty times the amount of money on their tray. The winner and runner-up of the challenge later learn of a bonus. The contestants are then visited by financial guru Suze Orman, who teaches them about the connection between physical health and financial health. She also makes a prediction on who this year's winner will be based on financial information they provide her. Season eight winner, Danny Cahill, provides a real life example to which the contestants can relate. The reward challenge for the week has the contestants racing to find one of the two keys among one hundred twenty keys that will start a brand new car. This challenge is made all the more difficult by mother nature. But the weather also provides an opportunity for an interesting... Written by Huggo

Andrea was voted off campus at the last weigh-in. The power of the vote this week may fall to one person. In a temptation challenge, the contestants are forced to eat all their meals alone for one day in a room filled with both healthy foods, and unhealthy foods. The person who eats the most calories will have the only vote at this week's weigh-in, except if that person falls below the yellow line. In that case, the vote will occur as usual. Many contestants resist temptation, some fall to temptation without a thought of playing the game, while two in combination decide to play the game. The temptation challenge ends up being a motivator at the workouts for many. The reward challenge has each contestant building a vertical structure out of blocks, strong and sturdy enough to climb up on to reach a flag. The first person to get their flag wins a one pound advantage at the weigh-in, the last place finisher receiving a one pound disadvantage. This challenge brings up a fear of heights ... Written by Huggo

After Vicky is voted off campus following the latest weigh-in, the remaining contestants learn that they will be traveling to Dallas, Texas, one of the unhealthiest cities in the United States, to help the legions of unfit there start on the path to good health. They act as motivators for those participating in a five kilometer walk/run starting and ending at the Cotton Bowl. The contestants participate in a reward challenge apropos to being in Texas, the winner to receive immunity for the week. This challenge brings out the alliances that are forming between the remaining seven. Jillian helps out a former contestant in inspiring a group of teenagers. The last chance workout is less two contestants who head home to deal with a family issue, but they return to Dallas in time for the weigh-in at the American Airlines Center. Written by Huggo

SunShine is still adjusting to the fact of O'Neal no longer being on campus, he who was voted off after the latest weigh-in. That leaves Sam and Koli as the only remaining couple among the six contestants still on campus. Those six have made it to makeover week. Each is given $1,000 to shop for clothing. They get to share their new made-over self with some special people. With their special people, the six are treated to a private concert to cap off their makeover. They get back to the reality of campus when they compete in a reward challenge. They must climb a Jacobs Ladder suspended over a swimming pool. The first person into the pool will have a one pound penalty at the weigh-in, the last person remaining with a one pound advantage at the weigh-in. The second place finisher questions his/her motivations for giving up the challenge. The results of the challenge affect how Bob and Jillian conduct the last chance workout. Written by Huggo

With Sam being voted off campus at the latest weigh-in, he who is the first contestant ever to reach his goal weight while on campus, there are no original couples within the remaining five contestants. Koli and SunShine did not understand why Ashley and Daris voted for Sam. Koli and SunShine however were and are unaware that Ashley, Daris and Michael have an alliance. The contestants learn that an alliance this week will not matter as there is no yellow line, only a red line, the contestant who falls below that line going home this week. This reality adds a noticeable air of tension on campus. The reality of the process also profoundly affects one of the contestants. To relieve the stress, Bob takes the contestants on a field trip for them to meet a friend who ends up inspiring them. Two previous biggest losers, who have had different post-contest paths, return to campus to provide guidance to the remaining five. Based on an on-line vote, a shedding weight challenge from a previous ... Written by Huggo

Sunshine, who fell below the red line at the last weigh-in, is not the only contestant going home this week. The final four contestants are all going home for thirty days before returning to campus to weigh-in to see which three will make it to the finale. While at home, each contestant weighs in in front of friends and family to show how much weight they have lost to date on campus. Some find being at home a challenge in and of itself, but some also find a few cathartic moments. The contestants quickly learn that they will have much work to do in those thirty days as they will be running a marathon at the end of their thirty days. Each finisher of the marathon will be given $10,000 to be donated to the charity of their choice. Two, who find the task daunting, decide to run the race together and finish together. During the race, each contestant is given some inspirational support. The contestants also learn that the two who fall below the yellow line will not have their fate resting ... Written by Huggo

Daris and Koli, who fell below the yellow line at the last weigh-in, learn who America voted for to join Ashley and Michael in the final three. Three winners from previous seasons watch on from the audience. Another former contestant, Shaye, returns to complete her Subway challenge which started at last season's finale. After weighing-in, Shaye learns that her challenge is not yet complete. Jillian promotes her new show, Losing It with Jillian (2010), on which she tries to complete in a week with home viewers what she has weeks to do on The Biggest Loser. Alison provides an update of the Pound for Pound Challenge. The contestants who did not make the final three are presented and weigh-in to see who will win the $100,000 at home challenge. The final three are then presented and weigh-in to see who will be named the winner of the grand prize $250,000 and this season's title of The Biggest Loser. Written by Huggo