When does Oz return?

Oz ran for six seasons, from its premiere on July 12, 1997 to its series finale on February 23, 2003. "Oz" is the nickname for the Oswald State Correctional Facility, formerly Oswald State Penitentiary, a fictional level 4 maximum-security state prison in an unspecified East Coast state. Most of the series' story arcs are set in "Emerald City", a wing named after a setting from the fictional Land of Oz in L. Frank Baum's Oz books.