Real World article
(written from a Production point of view)
MA 2009Warning!
This page contains information regarding I AM ERROR, and thus may contain spoilers.

Back on the USS Discovery, Michael Burnham and the crew are faced with the harsh reality of the war during their absence. In order to move forward, Starfleet must use unconventional tactics and sources to take their next action against the Klingons.


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Act One

Act Two

Act Three

Act Four

Memorable quotes

"The Discovery's been through... an inconceivable ordeal."
"Then where the hell is her commanding officer?"
"Captain Lorca... is dead."

- Sarek and Katrina Cornwell

"Bastard! The Lorca I came up with was measured, he was reasoned. I couldn't have imagined..."
"That Lorca was an impostor from an alternate universe was not the most obvious conclusion. We were all deceived."

- Katrina Cornwell and Sarek, on Lorca's true colors

"We are at war. Logic dictates that each farewell may be our last. Do not regret loving someone, Michael."

- Sarek's parting advice to Michael Burnham

Log entries

Background information

Production history



  • Admiral Cornwell, in her speech to the Discovery's crew, told them their visit would be the first to Qo'noS since Captain Jonathan Archer and the Enterprise crew first visited Qo'noS "nearly one hundred years ago". Enterprise visited the planet in ENT: "Broken Bow", but since that episode is set slightly more than a century ago, we can assume, Cornwell just simplified the time passed since Archer's visit to Qo'noS.
  • It is revealed that the ISS Discovery was destroyed by Klingons after crossing into the prime universe, trading places with its counterpart. Starfleet has found the debris and presumed it was the USS Discovery.
  • Starbase 1 is revealed to be one hundred astronomical units from Earth (in the outer Solar system) and now under Klingon control. A Starbase 1 was previously seen in Earth orbit in the alternate reality. Three starships were lost and several senior Starfleet officers were killed when they took the starbase.
  • The Federation Council allows the mirror Emperor Philippa Georgiou to assume the identity of her prime universe counterpart to lead a strike against the Klingon homeworld to end the war.
  • The Klingon homeworld Qo'noS is revealed to be a series of caves, one even large enough to hold a Crossfield-class starship like the USS Discovery. In the mirror universe, Qo'noS is a blackened ruin.
  • It was stated that in the mirror universe the Terran Empire controls more territory than the Federation and has explored further than they have dared.
  • Starfleet highly classifies all information on the Discovery's visit to the mirror universe. This could explain how the mirror Jonathan Archer could find no information on the Terran Empire in the USS Defiant's 2268 database, meaning the Halkan incident was also so classified by Starfleet, though at some point it was declassified as Bashir told Kira he read about Kirk's crossover at Starfleet Academy, as stated in DS9: "Crossover".

Links and references



Special guest star

Guest starring




agri-transport vessel; Archer, Jonathan; au; Battle of the Binary Stars; cancer; cave; choH'a'; class 4 moon; cloaking device; Delta 2; Discovery, ISS; EM dart; Enterprise NX-01; geostationary orbit; House of D'Ghor; House of Mo'Kai; hypothermic charge; Iridin; Kelfour VI; Klingon raider; Lorca, Gabriel; Lorca, Gabriel; mitochondria; mycelial bloom; mycelial ejection protocol; mycelial network; mycelial transport vessel; Nivalla; Qo'noS; Saratoga, USS; Septra; species reassignment protocol; spore harvest; Starbase 1; Starbase 12; Starbase 19; Starbase 22; terraforming; Veda system; volcano

Star chart references

11 Leonis Minoris; 59 Eridani; Acamar; Adelphous; Ajilon; Aldebaran; Alpha Monocerotis; Alpha Onias; Alpha Quadrant; Amar; Andoria; Archanis; Archer; Ardana; Azure Nebula; B'Moth; Ba'ku; Balduk; Barolia; Beta XII-A; Beta Lankal; Beta Leonis Minoris; Beta Quadrant; Beta Pictoris; Beta Rigel; Beta Thoridar; Brestant; Briar Patch; Carraya; Castor; Chi Leonis; Coridan; D'deridex; Deep Space K-7; Delta Outpost 3; Delta Outpost 4; Delta Outpost 5; Delta Outpost 6; Delta Outpost 7; Delta Outpost 8; Delta Outpost 9; Delta Outpost 10; Delta Outpost 11; Deneva; Dewa; Dinasia; Draken; Elas; Elora; Epsilon IV; Epsilon Hydrae; Epsilon Outpost; Epsilon Outpost 1; Epsilon Outpost 2; Epsilon Outpost 3; Epsilon Outpost 4; Epsilon Outpost 5; Epsilon Outpost 6; Epsilon Outpost 7; Epsilon Outpost 8; Epsilon Outpost 9; Epsilon Outpost 10; Epsilon Outpost 11; Galorndon Core; Gamma 400 system; Gamma Eridon; Gamma Hromi; Ganalda; Gariman sector; Gasko; Gorath; H'atoria; Halee; Hromi Cluster; Hyralan; Iconia; Iconians; Iccobar; Ikalia; Japori; Jouret; K't'inga; Khitomer; Klach D'kel Brakt; Krios; Korvat; Lambda Geminorum; Mempa; Mempa sector; Miridian; Morska; Narendra; Nequencia; New Providence; No'Mat; Omega Leonis; Organia; Orion; Paulson Nebula; Pheben; Pollux; Praxis; Qo'noS; Qo'noS sector; Qu'Vat; Ramatis; Regulus; Risa; Rura Penthe; Sherman's Planet; Sol; Son'a; Starbase 23; Starbase 24, Starbase 234; Starbase 343; Tarlac; Tananda Bay; Tellun; Tomed; Tranome Sar; Troyius; Ty'Gokor; Unroth; Valt; Vulcan; Xarantine; Yridia

Qo'noS globe locations

B'ror Tulvac; B'thel Krang Cha; Ba'Har Tor; Bar' Dak; Bar'or Lhess; Br' bethtik; Caves of Kahless; Caves of No'Mat; Central Plains Area; First City; H'Vek Tar; Hamar Mountains; Ha'r Kling Jaa; Har'Doth; Hess Kl'gar; Kalax; Kang's Summit; Ketha Province; Khell Tas So; Kl'alath; K'tang mar; K'ull Tan Saq; L'chorta; L'Har Mo'Tuk; L'Raal; L'vln Lak Raal; Lake of Lusor; Lhess Taal Dax; Lyn'Knor Tak; Mekro'vak region; Moog Kal Chack; Mor'em Cha; Pen'la Took; Qo'noS Pop Center; Qo'har dess; Qo'nVas Tem; Ren Sim'dhal; Skral River; T'chuu Nak; T'Val K'rang; T'Voq Har; Tar' Kl'val; V'char Tem; V'hechess; Vi'chak; Vort Kling Tuuk

Delta 2 locations

Apollodorus; Barma; Calvino; Chu Ta; Enwonwu Mountain Range; Holbein; Hun Kal; Rameau

External links

Previous episode:
"What's Past Is Prologue"
Star Trek: Discovery
Season 1
Next episode:
"Will You Take My Hand?"
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