A changeling tricks Sisko and the crew of the Defiant into taking actions that could start a war.

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Jadzia asks her friends to take on the personalities of Dax’s past hosts for a Trill rite of closure, but once Odo gets Curzon inside him, he doesn’t want the ritual to end.

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Kira joins her former leader from the Resistance in his struggle against the political ambitions of Kai Winn.

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After a Ferengi inquisitor comes to visit, Quark and Rom travel to Ferenginar to punish their Moogie for wearing clothes and earning profit.

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Sisko builds a version of an ancient Bajoran space vessel in an effort to prove that centuries earlier, Bajorans landed on Cardassia.

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An attack on Garak’s shop sets off a chain of events that sends Garak back to the Obsidian Order as the Cardassians and Romulans launch an attack on the Founders.

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Kidnapped into the dark alternate universe, Sisko must take on the role of his dead counterpart in order to save Jennifer — his late wife’s mirror parallel.

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In order to save his own life after a telepathic attack, Bashir must confront aspects of his own personality manifesting as colleagues on the station.

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A temporal accident flings O’Brien into the near future, where he witnesses his own death and the destruction of the station.

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After an encounter with the wormhole aliens, the Grand Nagus rewrites the Rules of Acquisition in favor of altruism.

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Despite an unnerving Bajoran prophecy, Sisko undertakes a joint scientific venture with Cardassian scientists to place a communications relay on the far side of the wormhole.

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When Kira is trapped in a growing crystal formation and her death seems imminent, Odo confesses his love for her.

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When Bareil is seriously injured during transport to the station to negotiate a peace treaty, both Winn and Kira convince Bashir to keep him alive by any means necessary.

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A transporter accident sends Sisko into Earth’s past, where he accidentally causes the death of the man who led the social revolution that triggered vast economic reforms.

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Members of the crew are struck by irrepressible urges to forsake their lovers and pair up with unexpected partners during a Bajoran festival attended by Lwaxana Troi.

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