Episode 25 of "Oz"
s04e01 A Cock and Balls Story

Two weeks have passed. Glynn meets with blacks and whites separately, agreeing to end the lockdown as long as they stop the violence. Khan's wife wins her case to have Khan taken off life support... Said agrees to the family's request to say a prayer over the body. Unopposed by Said, Arif takes over as Muslim leader. Cyril's dreams of Preston Nathan and Khan take their toll on him. When Gloria won't agree to Pete's request that she and Preston's parents have a victim/offender meeting with the O'Reily brothers, Ryan cuts himself to speak to her personally. The latest (and very gory) suicide in solitary leads Murphy to suggest exercise time for the solitary prisoners. Bevilaqua learns Miguel killed his cousin, Ricardo. He begins correspondence with El Cid, agreeing to kill Miguel for him. During the next exercise session, Miguel taunts Bevilaqua with the knowledge that Bevilaqua raped Ardith Glynn, even though Miguel told Glynn otherwise. Seconds before Bevliaqua moves in to kill, Giles stabs him and Miguel. Bevilaqua dies, Miguel goes to the infirmary with a wound to the side. Giles only explanation to Sister Pete is anger over the two men telling so many lies. Vern receives an old photo of his two sons, Hank and Andrew. Mukada and Said persuade Beecher to locate Hank Schillinger so peace can be made between Beecher and Vern. Keller forbids it. Beecher gets a visit from his father, who agrees to look for Hank. When Keller finds out, the argument between them turns violent, sending Beecher to the Hole. Shirley returns to Oz after the mysterious death of her unborn baby. She meets Nat, who is on death row for killing Nappa and won't let her have her old cell back... Moses Deyell, who greets her warmly, and Mark Miles, who rejects her friendliness with a few hateful remarks. Devlin's political ads spur Busmalis to make a surprising admission. Devlin's campaign manager, Wendy, tells Glynn he might be a choice for lieutenant governor if he makes a higher profile for himself with the public. Tim's plans to propose to Diane are dashed when Pete tells him Diane isn't coming back. While on vacation in London, she began a conversation with a Buckingham Palace guard (on break), and agreed to marry him. Per Adebisi's request, Glynn forces Tim to allow Pierce, Poet, and Wangler back into Em City. New arrivals are Mobay, Galino, and Tarrant. Galino (in Oz for faulty building construction that killed 2 people) alienates sponsor Pancamo with his anti-mafia comments. Sponsor Jazz takes Tarrant's money. Mobay hits up sponsor Hill for information on the drug trade, makes a connection with Wangler, and gets a job as Glynn's secretary. The latter is the perfect cover for his real purpose in Oz, a narc. Seeing Galino use a cell phone, Nikolai manages to con the phone and charger from him. Adebisi and Ryan set a plan into motion that puts Hughes gun into Tarrant's hands. Wangler, Poet, and Pierce force Tarrant to offer Wangler his shoes. After a tearful visit with McManus, he is further terrorized by the three men on the basketball court. Ryan publicly warns McManus to transfer Tarrant out, then offers him drugs and vengeful advice. Adebisi puts the gun under Tarrant's pillow. When Wangler tries to take away his new pair of shoes, Tarrant pulls out the gun. He wounds three inmates, including Keller (who is dragged to safety by Beecher), kills Wangler, Pierce, a guard, and as the SORT team swarms in, himself.