When Worf is accused of destroying a civilian transport ship during an engagement with the Klingons, a hearing is held on DS9 to determine if Worf should be extradited to Qo'noS on charges of murder.

When the counterpart of the long-deceased Jennifer Sisko lures Jake to the mirror universe, Sisko is forced into helping the Terran Rebellian against the Klingon-Cardassian Alliance.