Steven Assanti's dysfunction escalates, pushing his relationship with Dr. Nowzaradan to the brink, and a risky decision is made to save Steven's life, while brother Justin takes the leap to go to Houston to finally accept help.

Pivotal moments, whether tragic breaking points or ultimate triumphs, decide the success or failure of individuals struggling with extreme obesity. They must face the reality that weight-loss surgery alone is not the answer to reclaiming their lives.

Updates on Ashley, Donald, Henry and Melissa since their weight-loss journeys were chronicled. Included: new footage; and commentary from the show's producer.