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A Romulan bird-of-prey is discovered in the wormhole, not only threatening the wormhole itself, but Deep Space 9 and Bajor as well.


An electromagnetic pulse causes stationwide failures, the destruction of a ship coming through the wormhole, and a shift in Bajor's rotational axis. Dax identifies the source as something inside the wormhole. While Sisko considers his options, which include collapsing the wormhole, a probe reveals the remains of a Romulan warship inside the wormhole. The vessel's artificial singularity is disrupting the wormhole, leading Dax and O'Brien on a mission to retrieve the Romulan ship before another pulse destroys DS9. Dax comes up with a plan to invert the wormhole, which dislodges the Romulan ship. The Defiant fires on the wreckage, collapsing the singularity.



Jadzia DaxKira NerysMiles O'BrienBenjamin Sisko


Bajoran wormholeDeep Space 9Operations center
Referenced only
BajorEarthGamma Quadrant

Starships and vehicles

USS Defiant (Defiant-class) • Romulan bird-of-prey (2150s)

Races and cultures

Referenced only

States and organizations

Bajoran MilitiaRomulan EmpireStarfleetUnited Federation of Planets

Other references

Bajoran religionelectromagnetic pulseevent horizonorbprobequantum singularitytractor beam





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Mission of Mercy
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Malibu monthly series
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