Oz is the name on the street for the Oswald State Penitentiary. Our wheelchair-bound narrator Augustus Hill (Harold Perrineau Jr.) takes us through the wacky world of Emerald City, the experimental prison unit started by Tim McManus (Terry Kinney). There's shankin' and lovin' and cussin' and fightin' but in the end, HBO makes a damn fine prison drama. It's gritty. And there you have it.