The Black Team is gathered in the kitchen awaiting the results of the elimination, and the tension is thick. The last member of the Red Team to enter is Roy, and Daphne full well knows what this means. It's not long before Daphne and Conda are arguing... Early the next morning, Alison meets the contestants and trainers by the pool, carrying what looks like two heart-shaped boxes of candy. This week, Bob and Dolvett will pick one contestant from their teams to go home. Buddy immediately hopes to go home to see his month-old baby, and Chris is hoping Bob will pick her. Then Alison drops the bomb: the person who goes home will be the only person whose weight will count for their team. Not only that, Bob and Dolvett will accompany their players home. Dolvett chooses Conda, and Bob chooses Daphne. Alison explains that no one will get to take the week off; the team that wins the weigh-in will earn a one-pound advantage for their player.
Conda announces her intention to let bygones be bygones. It's a whole new week, so she and Daphne hug it out. Nevertheless, each woman is determined to win the weigh-in. After they leave, Chris tells her team that after the weigh-in, she specifically told Bob she needed his help this week - now she feels betrayed. If the Black Team loses the weigh-in, Chris is sure she's going home. Little does she know, she's turning off Jeremy and Megan with this sort of talk. Meanwhile, Conda's family gathers to welcome her home to Rockland, Michigan. Conda's mom DeeDee can't believe how good her daughter looks, and little Brooklyn gives her mom a big hug. Everyone's surprised when Conda opens the door to reveal Dolvett - she isn't alone on her journey. When DeeDee asks Dolvett how Conda's been acting, he changes the subject. That's a whole 'nother conversation.
Adrian and the whole family welcome Daphne back to Chicago, along with her surprise guest, Bob, who insists they have a point to prove. The whole family has to come together to ensure Daphne's doing all she has to do to return to the ranch and school Conda. Meanwhile, Dolvett decides to sit down with DeeDee and Conda's sister Shannon to learn more about Conda and her defensive walls. DeeDee explains that she had a troublesome divorce, during which she may not have paid enough attention to her kids. Shannon, the oldest, starts crying. Her dad was the best, but he had drug problems, which he's working on, but... DeeDee explains that Conda thinks her dad chose the drugs over his kids, and she hates him for that. Her intolerance of her father led to an "I-don't-care" attitude. Dolvett gets it and asks for DeeDee and Shannon's help. He promises Conda is very close to making the right changes.
Back at the ranch, the Black Team meets in the kitchen to try to put together a Bob-type workout circuit. The Red Team is at the gym starting their workout - but where's Roy? He's out walking, feeling the stress of his age. He hurts all the time, and he's exhausted. Of course, Kim's back in charge of the workout. She knows the Reds have a huge advantage over the Black Team, since they were without Dolvett last week. The Red Team notices the Black Team's energy is a lot lower than usual, and they seem to be goofing around a lot more. Meanwhile, Bob is all over Daphne, stoking her competitive fire for the week of Conda vs. Daphne. He picked her because he knew how angry she was over Adrian's elimination, and he wants to make it her personal vendetta. Bob's impressed with what he sees and grows more confident that Daphne's coming out of this week a hero. Still, he can't stop thinking about what Conda's doing... which is working out hard with Dolvett outside on a blustery day.
Rachel visits the kitchen where Buddy, Kimmy and Megan are cooking a meal. She pulls a Biggest Loser Simply Sensible meal out of the fridge to school them on a quick and easy way to eat. Rachel cooks their meal, which they all agree is delicious and would be great for kids, too - and only 250 calories. Meanwhile, Bob has dinner with Daphne and her family at the Navy Pier in Chicago. Daphne stuns her family with a confession: since she was diagnosed with atrial fibrillation, she's been to the emergency room over 100 times. The truth is, before the show, she felt like she was knocking on death's door. She needs to use a CPAP machine to keep her breathing at night. If for some reason it went off, she could go into cardiac arrest. This makes her feel as if she's a burden on her family, and she's been living in fear. Bob assures her that she's not a burden, and she's not going to die. Nevertheless, she has to release the stress and take control of her body and her mind. The dinner ends with a toast to Daphne's health.
Back in Rockford, Dolvett sits down with Conda to give her a special gift: a letter from each member of her team. Conda realizes that her teammates genuinely care for her, which is something she can keep with her forever. To reward Conda for all her hard work, Dolvett has made dinner reservations for her and her girlfriends, while he babysits Brooklyn. Conda is thrilled to meet up with her three best friends, but she's a little nervous because her daughter has a sassy attitude, just like her mom. And yes, little Brooklyn gives Dolvett a run for his money.
The next day, Alison welcomes the teams to the beach, where a bunch of giant logs have been set up. The team that wins today's challenge wins Valentine's Day letters from home - and a one-pound advantage at the weigh-in. The Biggest Loser has teamed up with the United States Post Office to make it all happen. Right now, the USPS is celebrating the release of their new Heart Health stamp to raise awareness and help prevent coronary heart disease. The Black Team has to choose one person to sit out, which none of them want to do. In the end, Emily takes one for the team. Now the challenge begins: the contestants have to dig into the sand to maneuver each team member under the logs, along with a 200-pound dummy, which represents their missing team member. Although Kimmy initially gets stuck under the log, the Red Team is first to make it through the first obstacle - and ultimately, to the finish line.
The Red Team sits on the beach to read their letters from home; many tears are shed, but everyone feels the kind of motivation that only family can give. Back in Rockford, Dolvett meets with Conda at her former high school, which is where she was when her parents' divorce began. She cries, remembering how it felt like everything went really bad, really fast. She didn't want to admit to anyone that things were falling apart. Clearly, Conda's beginning to realize how defensive she's become. Dolvett assures her that everything's going to be alright - she's starting to open up and become a team player. Dolvett's going to take team-building a step further. He opens the door to the gym for Conda's Last-Chance Workout and introduces her high school's girls' basketball team. Conda's amazed by the power of the team.
In Chicago, Daphne's wondering what Bob has in store for her Last-Chance Workout. They walk up to the Willis Tower - not only the tallest building in Chicago, but the tallest building in the western hemisphere at 1,450 feet. Daphne's going all the way up, and Bob wants her to do it in less than an hour. Bob brought some tools for the climb, letters from the Black Team, which he reads as they keep climbing. Daphne feels the love and resolves to make it all the way to the top. Daphne lags, but the thought of Conda helps her pick up speed through the final floors - and she makes her goal - 103 stories in 58 minutes!
The teams assemble for the weigh-in and are finally reunited with Conda, Daphne and their coaches. Chism remarks that Daphne looks changed, more confident. She's happy she was able to get closure with Adrian because she didn't get to see him after his elimination. Alison announces that the Red Team won a one-pound advantage at the challenge. Now the team with the highest percentage of weight loss on the scale will give their player an additional one-pound. After her week without Bob, Chris is nervous. At 206, she's approaching a milestone... which she just misses, losing five pounds. Jeremy is surprised to only lose six, the worst he's done so far. Emily loses five; Megan takes off four; and Cassandra hits her goal of six pounds - she's lost 50 pounds so far! Chism's last on the scale, losing seven pounds, which puts him under 300. The on-campus Black Team's total is 33 pounds at which everyone thinks is just so-so. Now the Red Team will need to lose more than 27 pounds to give Conda a second one-pound advantage.
Kimmy weighs in first for the Red Team, and she loses four. Buddy loses seven and Roy loses a very strong nine pounds. Now Kim and Mark need to lose seven pounds combined. Kim wants to do all seven by herself, and she blows everyone away with nine! Conda has her two-pound advantage. Last on the scale is Mark, who's thrilled to lose 10 pounds. Now it's time for the night's face-off. Daphne's up first, and she's feeling the weight of the world. She tells everyone that she put her all into this week and that the letters from her team meant so much. She dedicates the weigh-in to the Black Team, her children and, most of all, her brother Adrian. Daphne hits it out of the part with a 12-pound loss at For Conda to beat Daphne, she'll need to lose more than 10 pounds... and she loses exactly ten pounds.
Daphne feels great. She's saved her team and avenged her brother. Nevertheless, she doesn't like to see Conda crying. Kimmy quickly congratulates her - her 10-pound loss is great! The rest of the Reds offer their support. Since Kim has the highest percentage of weight loss this week, she's safe from elimination. Before they head off to deliberate, Dolvett tells his team he's very proud of them, and he's glad he chose Conda. Chris is scared for Roy, and as the smallest woman on the ranch, Kimmy's scared that her team might vote her off. Regardless, the team isn't happy to find themselves in the elimination room for the third week in a row. Kim kicks off the voting, explaining that Roy has seemed distracted lately. Both Mark and Kimmy have the same reasoning. Roy based his vote on percentage of weight loss, and he voted for Kimmy. Conda cries, revealing her vote for Roy, which means it's time for him to go home.