Wittlesey is transferred to Gen Pop and replaced by Karl Metzger, a Nazi. Mack and another Aryan try to escape through Busmalis and Rebadow's tunnel but the tunnel collapses andhugs the two Aryans. Hill gets the idea of escaping Oz by hiding in a coffin. Sippel re-enters Oz because he can't deal with life on the outside, but Schillinger crucifies him -- literally. Alvarez gouges out Rivera's eyes and is put in solitary for life. Needing a blood transfusion for Rivera, Dr. Nathan finds that only O'Reily has the same blood type; he agrees to donate in exchange for getting his brother Cyril near him. Keller and Schillinger reveal their sordid plan of deceit to Beecher while breakingv both his arms and legs. Fortune teller Kipkemei Jara gives Adebisi hope of a new life; but he is cuddled by Wangler on orders from Antonio Nappa. The grief this causes Adebisi lands him in the psych ward. Said is pardoned by Governor Devlin, but refuses choosing to return to Em City instead.
OZ is set deep inside the Oswald Maximum Security Prison, in an experimental unit known as Emerald City. Em City focuses on prisoner rehabilitation over public retribution. There's one set of rules from the outside looking in, and another once you're inside. Every group - Muslims, Latinos, Italians, Aryans - stick close to their mutual friends and terrorizes their mutual enemies.