After confronting a turbulent past, Allison, from season two, returns hoping for a second chance; always a chubby child, Ariel spends her adolescence being made fun of for her size.
At eight months pregnant Terra finds out that her boyfriend is cheating on her; alone and about to become a single mom, Terra drowns her feelings with food; after a traumatic incident, Alexandria turns to food to help her numb her pain.
Hayley has spent her life living in fear of her father, resulting in her seeking comfort in food; after learning of her father's sudden passing, Annie turns to food and leaves her dream of becoming a professional dancer behind.
Carolina gains 30 pounds after the love of her life dies in a car crash; Sean's fears of being vulnerable and open about his sexuality put Khloé and celebrity trainer Gunnar Peterson in a difficult position.
Kay has been closed to love since her husband left her just two weeks after the loss of their unborn child; Javier left a violent gang life behind when he became a father, and wants nothing more than to make his father proud.
Amy had a wake-up call when she and her daughter were kicked off an amusement park ride due to her size; when Eddie's first love cheated on him with buffer men he went into a spiral of self-hate and body shame.