It's Meghan and Jon's wedding day; when she gets cold feet, she leans toward leaving Jon at the altar; Tina and Ashely are getting bariatric surgery on the same day; while Ashely is under the knife, Tina refuses to show up for her operation.

The girls party in Savannah, Ga., for Meghan's bachelorette weekend, but the fun is interrupted by an unexpected hotel guest; when surgery day arrives, Ashely is terrified to have her second procedure; Tina's doubts throw her into a tailspin.

The girls take on a monumental challenge, completing a 5K race with Dr. Procter; Meghan's bachelorette party in Savannah, Georgia, provides some fun debauchery, but a potential confrontation threatens to ruin the entire celebration.

Fit Farm is finally over; Ashely and Tina meet with Dr. Procter to hopefully get approved for surgery; Meghan moves full speed ahead with choosing a wedding venue and picking her cake; Vannessa lets off steam riding a mechanical bull.

The BFFs struggle with the rigors of Fit Farm; Ashely learns to push herself past her comfort zone; Vannessa realizes she's capable of more than she thought; Meghan faces uncomfortable truths about her upcoming wedding; Tina finally snaps.

Meghan has a tough time finding a wedding dress that works; the girls go on a wellness retreat, and they're met with boot camp-like workouts that push them to their limits; Ashely breaks down in pain, threatening her weight loss goals.

Ashely is anxious about her Dr. Procter appointment; Vannessa tries to get Jacob's weight loss on track; Tina and the gang move back into their home; Meghan focuses on getting wedding dress ready after announcing that she's getting married.

Meghan opens her heart to Dr. Procter and gets back on track with her weight loss; living in a hotel pushes Tina to her breaking point; after Vannessa catches her sister enabling Jacob, she takes him to the doctor only to receive some upsetting news.