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The Other Side (STO)

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This article is about a mission in Star Trek Online's "Cardassian Struggle" episode. You may be looking for The Other Side, a Star Trek: Gateways novella.

"The Other Side" is a mission in Star Trek Online available to Federation player characters. It is the fourteenth mission of the "Cardassian Struggle" episode, and closes out the mirror universe story arc.


Now that the Prophets have weighed in, we know what we need to do. It's the how that's tricky.
We have an interdimensional transporter that will take you across, but we don't know what you'll find there. And you'd have to leave your ship behind.
There's another option. We've pinpointed where most of the Mirror incursions are happening. If there's a portal or rift of some sort, you could use it to take your ship to the other side.
Also, I had the Orb of Possibilities transported to your ship. I think you'll need it.
This is risky, <rank>, but I think it's our best chance. Good luck.


The player travels to a planet in the Arawath system and eliminates the Terran Starfleet forces outside the interdimensional portal, then travels into the mirror universe.

They emerge in the midst of a firefight between Terran and Klingon-Cardassian Alliance ships and are hailed by the mirror version of their old enemy Captain Ja'rod, son of Torg. Ja'rod asks them to destroy three Terran Typhoon-class battleships in a nearby drydock while his forces hold off the Terrans. The battleships are defenseless in dock but will attempt to detach; if they undock, they engage the player.

Once all three targets are down, Ja'rod hails the player again and requests their help to back up General B'Vat on the planet surface. The player deploys their away team and their science officer informs them that they have detected an Orb in a nearby cavern, blocked off by a force field. They disable the generators and proceed to the temple cave, engaging Terran ground forces along the way.

Inside the temple they discover B'Vat is being held prisoner by the Terrans in the same room as the prime universe's Orb of Possibilities. They retrieve the prime Orb and put the mirror Orb in its place, then free B'Vat and beam back out.

In space their escape route is blocked by another Terran battleship, which Ja'rod and B'Vat, commanding a Negh'Var-class, help destroy. They then return to the prime universe through the portal, which closes on its own, and report in to Starfleet.



B'VatJa'rod, son of Torg • James Kurland
Referenced only 
James O'BrienWorf


Arawath systemmirror universeprime universe.

Races and culturesEdit


Ranks and titlesEdit

captainchiefengineering officerensigngenerallieutenantmedicscience officertactical officer
Referenced only 
Regent of the Klingon Empire

Starships and vehiclesEdit

Galor-classKlingon battle cruiser (random) • Negh'Var-class warshipTerran cruiser (random) • Terran escort (random) • Terran frigate (random) • Terran science vessel (random) • Typhoon-class battleship (Terran)

States and organizationsEdit

Imperial StarfleetKlingon-Cardassian AllianceStarfleetTerran Empire

Technology and weaponsEdit

light photon torpedo turret

Other referencesEdit

away teamcontainment fieldforce fieldforce field generatorOrb of PossibilitiesOrb of Possibilities (mirror)transporter



Federation episodes in Star Trek Online
Tutorial Graduation DayTraining CruiseField PromotionsCommunication BreakdownAssimilation of the Innocent Ufp-emblem Starfleet Command logo
(Tour of Duty) (Prelude to a Crisis) • (Khitomer Crisis) • (The Price of Liberty) • (Assimilation) • (Gather Equipment) • (Line in the Sand) • Welcome to Earth Spacedock • (Skills Trainer) • (New Orders?)
Klingon War Welcome to Earth SpacedockStranded In SpaceDiplomatic OrdersHide and SeekStop the SignalResearcher RescueThe Kuvah'Magh • (War is Good for Business) • Treasure Trading StationSecret OrdersTask Force HippocratesSkirmishSpin the WheelWhat Lies BeneathEverything Old is NewNight of the CometThe Ultimate KlingonThe Doomsday DeviceCity on the Edge of NeverPast ImperfectTemporal Ambassador
Wasteland Secrets of NimbusThe Lost City of ParadiseBlind Men Tell All TalesThe UndyingA Fistful of GornInstallation 18
Romulan Mystery Heading Out • (Under the Cover of Night) • (Minefield) • (Divide et Impera) • (Saturday's Child) • (Preemptive Strike) • (Hunting the Hunters) • (Project NightingaleBy Any Means) • (Ground Zero) • (Ghost Ship) • (Friend of My Enemy) • (Trapped) • (S'harien's Swords) • Empress SelaDesperate MeasuresShadow PlayTarisThe VaultMine EnemyFrozenColiseumCutting the CordDarkness Before the Dawn
Cardassian Struggle Venture into Deep SpaceBadlandsSuspectWar GamesShutdownRapierForging BondsThe Long NightThe Tribble with KlingonsTear of the ProphetsCrack in the MirrorThe New LinkSeeds of DissentThe Other SideCage of FireSecond WaveOf BajorOperation GammaFacility 4028Boldly They Rode
Missions in parentheses are no longer available as of the current version of Star Trek Online.

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