After a delirious Bones hurtles through a time
portal to the 1930s, Kirk and Spock follow to save him and stop dangerous changes to the timeline, no
matter the cost.
— Michael Main
DEBUT
Star Trek (s01e28), “The City on the Edge of Forever”
(NBC-TV, USA, 6 April 1967).
VARIANTS
Debut. Star Trek (s01e28), “The City on the Edge of Forever” (NBC-TV, USA, 6 April 1967).