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Changing Face of Evil, The
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Til Death Do Us Part
Worf and Ezri are beamed aboard a Jem'Hadar ship, where the Female Shapeshifter and Thot Gor, the respective leaders of the new Dominion-Breen alliance, prepare to sign a treaty designed to destroy the Federation and end the war. However, Damar objects to signing it because of concessions, made to Thot Gor, which could harm Cardassia. Meanwhile, Kai Winn and Dukat seal their bond by pledging to restore Bajor — even if the Emissary stands in their way.
Kasidy has difficulty adjusting to her new role as the Emissary's wife, and is frustrated when Sisko asks her to preside over a special blessing ceremony. On Cardassia, Ezri and Worf learn that Weyoun and Damar plan to put them to death. Enraged, after being taunted with the possibility that Ezri may harbor feelings for Bashir, Worf kills Weyoun. Back at the station, Winn has a disturbing vision of the evil Pah-wraiths — the enemies of her people's Prophets.
Already skeptical of the new alliance, Damar is uncomfortable when the new Weyoun clone allows Thot Gor classified access, while elsewhere, Worf and Ezri break out of their cell, but are quickly apprehended. On Deep Space Nine, Kasidy discusses her situation with Kira, and Bashir leads O'Brien to believe he's attracted to Ezri. In Winn's quarters, she angrily orders Dukat to leave after he urges her to turn away from the Prophets and worship the Pah-wraiths.
Eager to prove her loyalty to the Prophets, Winn summons Kira, who advises her to step down. Back on Cardassia, a devastating battle for Cardassian troops leaves Damar feeling betrayed by the alliance. Later, on the eve of their execution, Ezri asks Worf if he loves her, but he evades the question.
To Sisko's delight, Kasidy agrees to preside over the special ceremony. O'Brien gets Bashir to admit he cares for Ezri, while Worf confesses he doesn't love Ezri as he loved Jadzia. Ezri, however, realizes she has feelings for Bashir. But as they're led to the execution chamber, Damar shocks them by arranging an escape route and imploring the two to tell the Federation they have an ally on Cardassia. On the station, the balance of power shifts yet again when Kai Winn, convinced she's been abandoned by the Prophets, tells Dukat she's ready to walk the path of the Pah-wraiths — and the two villains vow to overcome all foes.