Whitney is back and kicking things into high gear! She heads back to the doctor to see if her lifestyle adjustments have had any impact on her health. And, for the first time in years, Whitney tries to ride a bike again.

With the threat of diabetes upon her, Whitney throws a goodbye party for all of her favorite comfort foods. But watching those around her indulge makes for a difficult time.

Whitney's Big Girl Dance Class prepares for their debut performance at the Grasshoppers game, but the rain has her petrified for the girls' safety. Buddy and Whitney struggle to break their big news to Babs and Glenn.

It's finally time for Whitney to move out of her parents' house and start a new life with Buddy. Whitney and Babs have a perilous bonding experience while driving the moving truck.

Whitney falls hard on a first date. Whitney and Buddy do some furniture shopping but quickly realize they have very different tastes. Glenn shares some shocking health news.

Whitney and her dad compete in a 5K race, but crossing the finish line proves to be more daunting than they ever imagined.

Whitney invites Lennie to her 31st birthday party but quickly realizes that introducing him to family and friends on their second date is a huge mistake.

Whitney opens her Big Girl Dance Class to kids but is not prepared for what comes out of their mouths. Looking to make some extra money, she prepares for a job interview with the local baseball team.

Whitney gets a job with the Greensboro Grasshoppers, but even the most rigorous workout routine can’t prepare her for the physical challenges on the first day. An unauthorized break may cost her the job.

Whitney's confidence is rattled after receiving discouraging news at her weigh-in. A blowup with Buddy is just enough to set her over the edge.

Whitney models for Lennie in the nude as their relationship is just beginning to blossom. After designing a logo for the No Body Shame campaign, Whitney decides to pitch a bold idea to the Grasshoppers.

Whitney and Babs go on a road trip to to enter Henchi in a cat show. But will Whitney’s sleep apnea destroy Henchi’s chances of winning? Big Girl Dance Class gets invited to perform at the Summer Showcase.

Whitney takes a huge leap with the No Body Shame campaign by creating a groundbreaking video with the hopes of going viral.

Whitney and the Big Girl Dance Class seize the chance to perform with other acclaimed dancers, but dress rehearsal shows that the women might be in way over their heads.

Whitney wants to impress her love interest by cooking a romantic dinner, but catching the kitchen on fire is just the beginning of her problems.

A Big Girl car wash hopes to solve the financial woes that threaten Whitney’s trip to the National Dance Museum. Whitney bares all for a photo shoot and takes off more than imaginable.

Whitney realizes that the weight she’s gained is limiting her from becoming the dancer she once was. A game of truth or dare becomes twisted and scandalous, especially for Buddy and Lennie.

With her performance at the National Museum of Dance upon her, Whitney is still unsure of her routine. An added surprise on the day of throws her for even more of a loop.

Whitney babysits Tal's 11-month-old-nephew, which raises questions about her own fertility. Whitney can only bring one guest to the Dancing Man party in Los Angeles and must pick favorites among her friends.

Whitney's boss asks her to fill in as the on-field entertainment at the Grasshoppers baseball game. Glenn prepares for the worst when he learns the results from his diabetes blood work.

Whitney is off to LA for an event to celebrate a man who became an overnight sensation when he was fat-shamed on the Internet. But when Whitney returns home, she is hit with a harsh reality regarding her health.

Whitney takes a heartfelt and humorous look at never-before-seen moments from the show, shares special home movies from her childhood and answers personal questions from viewers at home.

Whitney welcomes TLC executive Mike Kane to discuss the ups, downs, hilarious moments and behind-the-scene secrets from season two.

Whitney's excitement over her first dance-a-thon takes a dark turn when she realizes that her 370 lb. body is not as healthy as she thinks it is. Meanwhile, Whitney's not sure how to feel about the reveal of Buddy's new girlfriend.

After collapsing at the dance-a-thon, Whitney's rushed to the hospital. But even the E.R. doctor can't scare her into making a big change, and a trip in the snow turns disastrous when she finds herself screaming at the television crew to help her.

After receiving grim news from a cardiologist regarding her collapse, Whitney must take a break from dancing. But she is blindsided when she learns that one of her fellow big girls is trying to hijack her class in her absence.

Whitney wants Lennie to move in, but her couples' game night with Heather and Buddy foreshadows a disastrous reality that she hadn't considered. High hopes of getting back into radio are crushed when Whitney bombs in an interview.

It's one thing to throw her back out at 370 lbs., but when Whitney's only option is to ride a mobility scooter in the St. Patty's Day parade, she experiences fat-shaming like never before.

Whitney hits the pool with transgender pal Mattie, only to find she's withheld something significant. When Whitney gives trainer Will excuses for her recent gym absence, she gets a lashing over her diet. Lennie goes MIA and Whitney turns to stalking him.

Between her parents' upcoming birthday party and Will's disapproval of her eating habits, Whitney is stressed. Then, she's blindsided at her radio job when a female comedian targets fat people. When Whitney jumps on the air, things get heated!

Whitney gets a chance to make her own dance DVD, but her reputation is at stake when her backup dancers fail her. Whitney's lack of commitment has Will fed up. Glenn threatens to get rid of Allister.

Despite the harsh setback of being fired by her trainer Will, Whitney must get her life together in time for the big ballroom competition in Charlotte. A surprising twist in her love life has everyone caught off guard - especially Lennie.