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"Yesterday, Today and Tomorrow" was the second issue of John Byrne's TOS Assignment: Earth miniseries. It adapted TOS episode: "Tomorrow is Yesterday" as told from the point of view of Gary Seven and Roberta Lincoln.


Telling the story of the Assignment: Earth TOS spin-off from Gene Roddenberry that never came to pass, a time-traveling U.S.S. Enterprise intersects with Gary Seven's efforts to save the future from a 1969 crisis that only he and his assistant Roberta can avert!


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John ChristopherDonnerIsisJames T. KirkRoberta LincolnGary SevenSpockHikaru Sulu

Starships and vehicles

USS Enterprise (Constitution-class heavy cruiser) • Bluejay 4 (F-104 Starfighter jet aircraft) • truck
Referenced only
aircraft carrierUFO


EarthNew York CitySingleton Air Force Base
Referenced only
Alpha Centaurithe galaxy

Races and cultures


States and organizations

Military policeUnited States Air Force (Sector Nine)

Science and classification

atomic bomb platformBeta Fivechronometercommunicatorcomputerfilmlaboratorylight speed breakaway factorlight warping fieldmemory banknuclear missilescannerservoshieldtapetechnologyteleportertractor beamtransporterturbolifttypewritervoice recognitionwarp drivewing camera

Ranks and titles


Other references

20th centuryantimatterassignment patchatmospherebeambluffcatchronotropic fragmentcommunicationscorridorcrewEnglish languageespionageflight suitfoods and beverageslifeformmapmassmilitaryminiskirtminutemuseumorbitpajamassecurityStarfleet uniform (2265-2270)timestreamtime traveltransporter roomtreeuniformU.S. military uniformsyear


Production history

4 June 2008
First published by IDW Publishing.
29 December 2008
Reprinted in the Assignment: Earth miniseries omnibus.
28 May 2013
Collected in hardcover in The John Byrne Collection omnibus.
31 December 2015
Collected in paperback in The John Byrne Collection omnibus.
9 November 2017
Reprinted in hardcover in Graphic Novel Collection #23 by Eaglemoss.


Related media

  • Tomorrow is Yesterday (TOS episode) - This story take place concurrently with the episode, showing Gary Seven's activities during the Enterprise's time travel incident to make sure the timeline is not adversely affected.
  • Assignment: Earth (TOS episode) - Gary and Roberta reference their previous encounter with the Enterprise from this episode.


  • This story is twenty-one, rather than the usual twenty-two, pages long.
  • This issue was available in two covers: The same John Byrne artwork either with or without cover titles. The non-title version was a limited availability retail incentive.
  • The eleven pages of editorial content in the issue include an advert for the next issue in the miniseries and another page advertising the Mirror Images miniseries.



Media featuring Gary Seven
Episode Assignment: Earth
Miniseries The PeacekeeperConvergenceThe Eugenics WarsAssignment: Earth
Novels Assignment: EternityThe Rise and Fall of Khan Noonien Singh, Volume 1The Rise and Fall of Khan Noonien Singh, Volume 2From History's ShadowElusive Salvation
Short stories "The Aliens Are Coming!" • "Seven and Seven" • "Assignment: One" • "Rocket Man" • "Time Line"
Comics "The Peacekeeper, Part One" • "The Peacekeeper, Part Two" • "Split Infinities" • "Future Imperiled" • "Brighter Than a Thousand Suns" • "Yesterday, Today and Tomorrow" • "My Name Is Legion" • "We Have Met the Enemy..." • "Too Many Presidents" • "Ah-Ha!" • "Medics" • "Hosts" • "1971/4860.2" • "An Unexpected Yesterday" • "Year Five, Issue 11" • "Year Five, Issue 12" • "Year Five, Issue 15" • "Year Five, Issue 16" • "Year Five, Issue 17" • "Year Five, Issue 21" • "Year Five, Issue 22"


The story takes place concurrently with the TOS episode: "Tomorrow is Yesterday", beginning moments before the episode.

Published Order
Previous comic:
Brighter Than a Thousand Suns
TOS comics (Assignment: Earth) Next comic:
My Name Is Legion
Chronological Order
Previous adventure:
Brighter Than a Thousand Suns
Memory Beta Chronology Next adventure:
Tomorrow is Yesterday

External links