Oz: Season 4

16 EPISODES | TV-MA

The acclaimed HBO drama series that takes a gritty, realistic look at life behind the walls of an experimental prison within a prison.

The Season Four premiere opens with the inmates still on lockdown and prison officials struggling to end the hostilities.

The African-American inmates point the finger at McManus for letting Em City get out of hand.

Mobay is cornered: either take drugs to prove he's not undercover or get rubbed out.

Em City gets a new resident who is definitely bad news and McManus returns in a new capacity.

Beecher falls deeper into depression as he wonders about the fate of his children.

In an effort to reduce violence, white inmates are transferred out of Em City. Mobay gets in good with Adebisi's crew but pays a price.

O'Reily begins an affair with an unexpected partner while Zabitz asks Schillinger for protection.

After Hughes's attack on Devlin, Glynn withdraws from the race. Alvarez is still on the loose. Supreme Allah gets an unwanted surprise.

A TV newsmagazine crew descends on Em City, and the results aren't quite ready for prime time.

The zealotry of new prisoner Jeremiah Cloutier (a former TV evangelist) is met with skepticism.

Morales looks to pit the Chinese against Redding. Alvarez offers Glynn his services as an informant as a way out of solitary.

O'Reily regrets having gotten Cyril involved with the trial drug when it starts taking effect.

O'Reily is in for a surprise when a visitor reveals the truth about his past, while Cyril faces trouble for his difficult behavior.

McManus calls a superficial truce between Redding and Morales. Basil finally sees his wife, but Hughes ends up spoiling their happiness.

McManus finds he is unable to turn his back on White. Beecher tells the parents of the young girl he killed that he's up for parole.

Hill discovers where his allegiances lie. Meanwhile, Redding and Morales consider a truce.