The Thores are left heartbroken by the passing of their matriarch, Babs. With Glenn forced to navigate life without his wife, Whitney takes on the role of caring for her aging father and moves him into her home.
While helping Ashley prepare for her baby, Whitney panics about her own fertility, but is another cat the solution? Buddy's been missing for days causing Whitney and Heather to investigate but they're not prepared for what they find in his bedroom.
With treatment coming to an end, Buddy must decide between Whitney's house and a sober living facility in Charleston. Whitney tries to convince Buddy to give Heather closure. The Thore family receives devastating news.
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.
Whitney and the entire cast dish on the highs and lows of the past season, from Whitney's real feelings about the funeral intervention to the beef between her and Caitie. Plus, Lennie and Whitney meet again for the first time since breaking up.
Before Buddy leaves town, he sits down for a final talk with Heather; but nothing could prepare her for the bombshell he delivers. Whitney questions her friendship with Buddy and announces an alarming plan to start a family.
Whitney uncovers a dark truth about the man she's fallen for, but will he fess up when confronted? Todd refuses to give Whitney her class back, but she has a big fat trick up her sleeve. Heather confronts Buddy about his change of heart.
Buddy's been missing for over a week and a visit to his parents' house has Whitney uncovering the harsh truth. Meanwhile, Ashley's about to give birth and the reality of it all has her falling apart. Will Whitney's blessing ceremony do the trick?
With the Hawaii trip fast approaching, Whitney prepares for the 5K. Whitney and Heather visit Buddy in rehab, and he tells the life and death story of how he got there. Whitney invites Buddy to Hawaii, but will he make it out in time?
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.