Seana is 23 and nearly 700 lbs, living at her mom's house, depressed and anxious, her weight-gain threatening to take her last breath; Dr. Now can give her the tools she needs to live, but until she chooses life, no one can save Seana but herself.

Tommy wants to lose weight so he can marry his fiancée and have the life he always dreamed of with her, but to break the cycle of pathological eating that left him nearly bed-bound, he'll have to face a piece of his past he has always kept secret.