Trekipedia

Tomorrow is Yesterday

The Enterprise is thrown back to 20th century Earth.

• Stardate 3113.2
• Released 26 Jan 1967

After an encounter with the gravitational forces of a “black star,” the Enterprise is hurled backward in time to the twentieth century. Flying over Nebraska, the starship is sighted and classified as a UFO, and Air Force pilot Captain John Christopher photographs the Enterprise with his jet’s wing cameras. When his jet is accidentally destroyed by the starship’s tractor beam, he is transported aboard. After first deciding that it would not alter history if Christopher never returned to Earth, Spock then discovers that Captain Sean Jeffrey Christopher, the pilot’s as-yet-unborn son, will lead an important expedition into space.

This leaves Kirk and crew with three large problems: 1, retrieving the film that shows the Enterprise in Earth’s atmosphere; 2, getting the pilot back where he belongs; and 3, returning to their own time without changing history. After Sulu, Kirk, and Spock surreptitiously obtain the film, Scotty duplicates the “slingshot effect” responsible for their temporal displacement, Christopher is returned to his jet, and the Enterprise returns home.

Written by: D.C. Fontana
Directed by: Michael O’Herlihy

Cast:

• Captain James T. Kirk (William Shatner)
• Commander Spock (Leonard Nimoy)
• Dr. Leonard “Bones” McCoy (DeForrest Kelley)
• Lieutenant Commander Montgomery Scott (James Doohan)
• Lieutenant Hikaru Sulu (George Takei)
• Lieutenant Nyota Uhura (Nichelle Nichols)

Guest Cast:

• Captain John Christopher (Roger Perry)
• Lieutenant Colonel Fellini (Ed Peck)
• Transporter Chief Kyle (John Winston)
• Air Police Sergeant (Hal Lynch)
• Technician Webb (Richard Merrifield)