Addiction specialist Dr. Drew returns to the Pasadena Recovery Center, but this time he and his staff have opened the rehab doors to everyday Americans struggling with addiction.

As the treatment process begins, all of the patients are experiencing intense physical withdrawal symptoms, but none more than Ashleigh. Later, the three remaining patients arrive.

As the numbing effects of drugs and alcohol wear off, powerful feelings begin to take hold of the patients, and in an emotional process group one of them shares suicidal thoughts.

At this stage in treatment, Dr. Drew and his staff begin to reduce the patients' detox medications, which causes them to become agitated and emotional.

Eric and Ashleigh's fight from the hike continues back on the unit. Jasmen's denial about the severity of her addiction upsets the patients, and when Erika confronts her, it starts a war that threatens to divide the group.

As the patients approach the halfway point, many are doing much better, but for some the hardest part is yet to come. Drewbee's paranoia gets the best of him and he's nearly discharged for breaking the rules. Presented by VH1.

Lead Counselor Bob Forrest finds Eric walking aimlessly through the streets of Pasadena, and he convinces him to return back to the unit. A field trip meant to inspire the patients ends in a medical emergency.

Ashleigh's seizure continues and she's rushed to the hospital in an ambulance. Deanna opens up about some horrible trauma in her past, inspiring another patient to finally reveal a secret she's been holding in since she was a child.

Dr. Drew reunites the patients with their families. Ashleigh and her sister Holly reveal to their mother a painful secret both have been harboring for decades. Dr. Drew is stunned to learn that Jasmen doesn't intend to go to sober living.

Outside the recovery center, Dr. Drew heads off Drewbee and convinces the troubled addict to return to treatment. Erika's boyfriend Stefanos calls the center intoxicated and Erika realizes she must make a difficult choice.

With graduation looming, tensions on the unit reach a boiling point. In a heartfelt graduation, Dr. Drew and the patients give their hopes, wishes and fears as this journey comes to an end.