The daily lives of prisoners in Emerald City, an experimental unit of the Oswald Maximum Security Prison where ingroups - Muslims, Latinos, Italians, Aryans - stick close to their mutual friends and terrorize their mutual enemies.

'Oz' is a compelling, brutal, and thought-provoking series exploring prison life's complexities. Themes like gang warfare, racial tensions, and drug dealing are central. Praised for strong character development and realistic portrayals, it offers intense storytelling. However, it faces criticism for graphic violence, unrealistic plotlines, and occasional lack of character depth. Some argue it's groundbreaking, while others find it controversial.