Episode 31 of "Oz"
s04e07 A Town Without Pity

Ryan, who is secretly having an affair with Howell, asks her to kill Nikolai. She electrocutes Nikolai in the bathtub. Moses learns his appeal has been denied, and an appeal to a higher court would take a year. Sick of the racial taunts, Moses begins chipping a hole in the wall between his cell and Miles'. Keller and Schillinger separately plan to kill Zabitz. When Keller and Robson confront him in a storage room, their turf war is solved by Zabitz's fatal heart attack. Said catches Beecher with yet another man, as Beecher uses sex to numb his pain. Beecher rips into Sister Pete for her recent disappearing act. Hank gets vacation money from Vern after being freed by technical error. As he plans to kill Vern, Beecher pays Pancamo to kill Hank. His later attempt to stop the hit is too late. Rebadow returns from the Hole, apologizing to Busmalis, but falls to the floor before Busmalis can shake his hand. He goes to an outside hospital for removal of a brain tumor. Busmalis begins another tunnel. Hill is shaken after after a lengthy interrogation by McGorry. Allah threatens Arif, who then begs Said to retake his role as Muslim leader. The gays are transferred to Unit B. Adebisi tapes wild sex and drug parties in his pod. When Pancamo and Morales demand their share of drug money, Adebisi reveals they (along with the rest of the Italians and Latinos) are being transferred to Unit B. McManus and Said make plans to take back Em City. Said grants Adebisi's longtime wish of a partnership. Adebisi forces him to swear on Allah that he's sincere. Lenore shares her fears with Glynn. At a press conference, a Travis Bickle-esque Hughes (complete with Mohawk) shoots Devlin.