Miguel wants to return to solitary. Warden Glynn finds out who raped his daughter. The final boxing match ends in tragedy. Clayton Hughes leaves a present for Adebisi.

Wangler and Adebisi make a complaint to the Warden, against Tim McManus. Bellinger enlists McManus' help. Glynn and Hughes discuss his father's death. The prison is lockdown after a fight.

Feeling guilty for his role in Andrew Schillnger's death, Beecher seeks spiritual advice from Said. Ryan O'Reily hires Kosygin to kill Cudney. Busmalis gets a visitor and Sister Pete questions her faith.

Kenny has his wife and her boyfriend murdered after learning of her infidelity. Beecher and Andrew grow closer, which angers Schillinger.

Andy Schillinger arrives in Oz and Vern tries to get Warden Glynn to move Andy to unit B, so that his enemies will not harm his son. McManus is sued for sexual harassment.

The inmates in OZ prepare for the boxing tornaments. Nappa learns that he has a deadly disease. Dr Nathan takes action.

McManus hires an old friend Sean Murphy to supervise Em City after the death of Metzger. An inmate boxing program. Coyle tells Hill gruesome details of a family he murdered. Adebisi gets a job in the AIDS ward. Keller gets stabbed. Alvarez begins to go crazy, now that his medication has been reduced.

The prison's name is changed to Oswald State Correctional Facility. Clayton Hughes is hired with slight hesitation from Glynn. A new CO gets friendly with McManus. A managed and cheap way of getting health care takes over Oz's infirmary, to Dr. Nathan's disgust and Alvarez's detriment. Ryan plots revenge against Schillinger. Said goes on hunger strike. Beecher gets revenge.