Episode 30 of "Oz"
s04e06 A Word to the Wise

The white Christians are transferred to Unit B... Adebisi keeps the black Christian as his new plaything. Said motivates Arif to take a stand against Querns, but he accomplishes nothing. Supreme's conversion of Arif's men sends Arif on an unsuccessful bid to pit Supreme against Adebisi. McManus and Murphy make up. When Querns transfers Mineo and Armstrong, Tim moves them and Murphy to Unit B. His complaints of racism to Glynn backfire when Claire is moved to Em City. Sister Pete manages to grant Nat's request to move up his execution. Dressed as Susan Hayward, he dies in his sleep hours before his date with the gas chamber. Detective McGorry investigates Gergan's death. Miguel is sighted at Bear Mountain. While high, Mobay lets a hint of his identity slip to Hill. He later decides to kick drugs. Beecher learns Holly is alive, and that Hank Schillinger has been arrested. Vern stays cool under questioning. Keller rejects Beecher's pleas for forgiveness. Querns moves them to separate pods. Keller confesses his guilt in the gay murders to Mukada, who refuses to grant him penance. With Keller watching from overhead, Beecher consents to sex with aggressive new podmate Mondo. Rebadow fantasizes about gunning down the entire lunch crowd, makes up with Busmalis, and tries to kill him as he sleeps. Busmalis survives and Rebadow goes to the Hole. Despite Nikolai revealing all details about the cell phone, Querns's search comes up empty. Nikolai asks his girlfriend to dial a number at a certain time. The phone rings until guards find and confiscate it. Cyril overdoses on Haldol. Worried that Gloria's anger will cause her to mistreat Cyril, Pete tells Gloria about Ryan falsely confessing to arranging her rape. In the gym, Ryan kills Keenan, with an unseen Arif watching. Unsure of her feelings for Ryan after he gives her proof of how he avenged her, Gloria takes some time off.