Release Message:  Sisko, Dax, Odo and Garak (Andrew Robinson) find themselves in the past when the Cardassians controlled the station, and a crime that Odo investigated may be the key.

Description:  Sisko, Dax, Odo and Garak find themselves in the past when the Cardassians controlled the station, and a crime that Odo investigated may be the key. Wikipedia: Sisko, Odo, Dax and Garak find themselves on Terok Nor during the Cardassian occupation of Bajor.