3-02: The Search, Part II
While Odo and Kira learn more about The Founders, Sisko and crew are concerned about sweeping changes back home.
3-19: Through The Looking Glass
Sisko is forced to persuade the alternative-universe version of his wife to join the Terran Rebels to save her life.
3-05: Second Skin
Kidnapped and surgically altered, Kira is lead to believe that she is the long-lost daughter of a prominent Cardassian figure.