Upon returning from Orion’s past, Captain Kirk and Mr. Spock find that the Vulcan first officer never existed. Using the Guardian of Forever, Mr. Spock must return to his own past to ensure his survival. BLU-RAY SCREENCAPS BEHIND THE SCENES CREDITS GUEST CHARACTERS QUOTES SYNOPSIS

Yesteryear TAS Season 1, Episode 2 WRITTEN BY D.C. Fontana DIRECTED BY Hal Sutherland First Aired Sep 15, 1973 Stardate 5373.4

BACK TO TAS EPISODE GUIDE | Season 1 Episodes: Beyond the Farthest Star, Yesteryear, One of Our Planets is Missing, The Lorelei Signal, More Tribbles, More Troubles, The Survivor, The Infinite Vulcan, The Magicks of Megas-Tu, Once Upon a Planet, Mudd's Passion, The Terratin Incident, The Time Trap, The Ambergris Element, The Slaver Weapon, The Eye of the Beholder, The Jihad