When does Oz return?

Oz premiered on July 12, 1997, and ran for six seasons. "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, first described in The Wonderful Wizard of Oz (1900)