Four obese best friends struggle to lose weight together. Meghan had bariatric surgery, but she has stopped shedding pounds. Vannessa hopes to get surgery but gorges on fast food with her family. They visit Dr. Procter to get back on track.

After disappointing weigh-ins, Meghan and Vannessa are determined to do better. All four besties attempt to conquer a massive waterslide. Then, meeting with a nutritionist and therapist motivates Vannessa to confront her enabling sister.

Meghan organises a glamping trip for the group, but tempers flare when Vannessa and Tina have trouble sorting out their differences. A challenging bungee workout has Ashely considering a second bariatric surgery.

Meghan attempts to gain body confidence by shopping for toys at an adult store; Vannessa prepares to move away from her toxic sister, Jakie; the best friends struggle with a barbarian fitness boot camp.

The ladies head to the beach to fulfill Meghan's dream, but things go awry.

The BFFs face the biggest challenge of their trip -- walking on the beach.

During therapy, Vanessa finally confronts the demons from her past.

Vannessa works to repair the fractured relationship with her sister.