STAR TREK: THE ORIGINAL SERIES
Season 1, Episode 19

Tomorrow Is Yesterday

Series: Original Series - (1966-1969)
Season: 1
Episode #: 19
Production #: 6149-21
Original Airdate: 01/26/1967

Writer(s): D.C. Fontana
Director(s): Michael O'Herlihy

Guest Stars
Roger Perry as Captain John Christopher
Hal Lynch as the Air Police Sergeant
Richard Merrifield as Technician Webb
John Winston as Transporter Chief Kyle
Ed Peck as Lieutenant Colonel Fellini
Mark Dempsey as the Air Force Captain
Jim Spencer as the Air policeman
Sherri Townsend as a Crew Woman

Uncredited Guest Stars
Majel Barrett as the Computer Voice
William Blackburn as Lt. Hadley
Frank da Vinci as Lt. Brent
Eddie Paskey as Lt. Leslie

Stardate: 3113.2

Synopsis

When the U.S.S. Enterprise is thrown into a time warp by a black star, it ends up orbiting Earth in the 20th century. Omaha Air Base detects a peculiar UFO and sends a fighter plane, manned by Captain John Christopher, to investigate.

The starship accidentally destroys the plane, caught in their tractor beam, so the pilot is beamed aboard. The problem now, of course, is to prevent Captain Christopher from returning to tell others on Earth. In order not to change history, in which Christopher's son will prove important, Kirk must return the captain to Earth without knowledge of the ship.

[ Complete Screencap Index ]

In an attempt to remove all records of the U.S.S. Enterprise sighting, Kirk and Sulu beam down to the air base. Kirk is almost immediately captured by the Air Police, though Sulu manages to escape and gets the stolen records to the U.S.S. Enterprise. Spock and Captain Christopher beam down to help get Kirk away from the Air Police. At the same time, an Air Police sergeant has been accidentally caught in the U.S.S. Enterprise's transporter beam and is reeling as he finds himself on a 23rd-century starship.

Spock and Scotty manage to recreate the conditions of the time warp that brought them to this time, with a slingshot effect around the Sun. The confused Air Police sergeant is returned to Earth a second before he was transported to the Enterprise, so he will remember nothing of his astounding experience, and the starship returns to the 23rd century.

This time, the pilot sees nothing and the Air Force concludes that the sighting was a mistake ... a UFO. In effect, everything that had happened, never happened.

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