Friction grows in the wake of two passings--first Ortoloni and now Johnny Post--so Wiseguy leader Schibetta, Muslim leader Said, and Homeboy Jefferson Keane are brought together by Warden Glynn, who tells them to keep their boys quiet or else he'll lock the prison down. The tension increases following a visit from Governor Devlin, who was responsible for the ban on smoking and conjugal visits. Meanwhile, Keane has found God--just as a couple of Latinos with a grudge find him.
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.