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Tomorrow is Yesterday

This episode is locked. New translations may be added.

The Enterprise collides with a black hole and is thrown back to Earth in the 20th century, where they must find a way back and erase any trace of their presence. Matters become complicated when they rescue an Air Force pilot and cannot return him without changing history... but if he disappears that will change history as well.

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  • Originally Aired January 26, 1967
  • Runtime 60 minutes
  • Content Rating United States of America TV-PG
  • Production Code 6149-21
  • Network NBC
  • Created June 3, 2019 by
    Administrator admin
  • Modified June 3, 2019 by
    Administrator admin
Name Type Role
D.C. Fontana Writer
Roger Perry Guest Star
Hal Lynch Guest Star
Mark Dempsey Guest Star
Richard Merrifield Guest Star
Jim Spencer Guest Star
Ed Peck Guest Star
Sherri Townsend Guest Star
Michael O'Herlihy Director