Episodes
1. Spock's Brain
6.2
September 20, 1968
51 min
An alien female beams aboard the ship and, after incapacitating the rest of the crew, surgically removes Spock's brain. Kirk and the crew have just hours to locate and replace it before Spock's body dies.
Guest Stars:
Marj Dusay, Eddie Paskey, Sheila Leighton, Majel Barrett, Frank da Vinci
2. The Enterprise Incident
7.9
September 27, 1968
51 min
The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
Guest Stars:
Jack Donner, Eddie Paskey, Richard Compton, Joanne Linville, Gordon Coffey
3. The Paradise Syndrome
6.6
October 4, 1968
51 min
An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
Guest Stars:
Rudy Solari, Richard Hale, Sabrina Scharf
4. And the Children Shall Lead
5.7
October 11, 1968
51 min
On a distant planet, Kirk, Spock and McCoy find a scientific team dead, and their children who, unknown to the crew, have great powers at their disposal.
Guest Stars:
Melvin Belli, Pamelyn Ferdin, Brian Tochi, Craig Huxley, Frank da Vinci
5. Is There in Truth No Beauty?
7.1
October 18, 1968
51 min
The Enterprise travels with an alien ambassador whose appearance induces madness.
Guest Stars:
David Frankham, Diana Muldaur, Frank da Vinci
6. Spectre of the Gun
6.8
October 25, 1968
51 min
Having been found trespassers into Melkotian space, Captain Kirk and his companions are sent to die in a re-enactment of the gunfight at the O.K. Corral.
Guest Stars:
Charles Maxwell, Eddie Paskey, Gregg Palmer, Bill Zuckert, Abraham Sofaer
7. Day of the Dove
7.5
November 1, 1968
51 min
An alien force drives the crew of the Enterprise into brutal conflict with the Klingons.
Guest Stars:
Michael Ansara, Mark Tobin, David L. Ross, Susan Howard
8. For the World Is Hollow and I Have Touched the Sky
7.2
November 8, 1968
51 min
The crew of the Enterprise rush to stop an asteroid from colliding with a Federation world, but discover the asteroid is actually an inhabited generation ship.
Guest Stars:
Katherine Woodville, Jon Lormer, Byron Morrow, Frank da Vinci
9. The Tholian Web
7.5
November 15, 1968
50 min
Captain Kirk is caught between dimensions while the crew of the Enterprise works to retrieve him. All the while, the Tholians demand that the Enterprise leave their space.
Guest Stars:
Barbara Babcock, Frank da Vinci
10. Plato's Stepchildren
6.8
November 22, 1968
51 min
The crew of the Enterprise encounters an ageless and sadistic race of humanoids with the power of telekinesis and who claim to have organized their society around Ancient Greek ideals.
Guest Stars:
Barbara Babcock, Michael Dunn, Liam Sullivan
11. Wink of an Eye
7.4
November 29, 1968
51 min
Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".
Guest Stars:
Jason Evers, Kathie Browne, Geoffrey Binney, Erik Holland
12. The Empath
6.5
December 6, 1968
51 min
While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
Guest Stars:
Jason Wingreen, Kathryn Hays, Davis Roberts, Willard Sage, Alan Bergmann
13. Elaan of Troyius
6.8
December 20, 1968
51 min
The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
Guest Stars:
France Nuyen, Dick Durock, Lee Duncan, Victor Brandt, Jay Robinson
14. Whom Gods Destroy
6.9
January 3, 1969
51 min
Captain Kirk faces off with a demented shape-shifting starship captain determined to control the universe.
Guest Stars:
Keye Luke, Yvonne Craig, Steve Ihnat, Frank da Vinci
15. Let That Be Your Last Battlefield
7.4
January 10, 1969
51 min
The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.
Guest Stars:
Lou Antonio, Frank Gorshin, Majel Barrett, Frank da Vinci
16. The Mark of Gideon
6.8
January 17, 1969
51 min
A race of overpopulated aliens abduct Captain Kirk to solve their problem.
Guest Stars:
Sharon Acker, Richard Derr, David Hurst, Gene Dynarski, Frank da Vinci
17. That Which Survives
6.6
January 24, 1969
51 min
Kirk, McCoy, and Sulu are stranded on a barren planet where a mysterious woman attempts to kill them one at a time, while the Enterprise must travel halfway across the galaxy to rescue them.
Guest Stars:
Lee Meriwether, Arthur Batanides, Kenneth Washington, Booker Bradshaw, Frank da Vinci
18. The Lights of Zetar
6.5
January 31, 1969
51 min
Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
Guest Stars:
John Winston, Jan Shutan, Majel Barrett, Barbara Babcock, Frank da Vinci
19. Requiem for Methuselah
7.1
February 14, 1969
51 min
The crew of the Enterprise encounter an immortal human in this science fiction variation on Shakespeare's The Tempest.
Guest Stars:
Louise Sorel, James Daly
20. The Way to Eden
6.1
February 21, 1969
51 min
The Enterprise picks up a group of space "hippies" looking for Eden.
Guest Stars:
Elizabeth Rogers, Charles Napier, Mary Linda Rapelye, Deborah Downey, Phyllis Douglas
21. The Cloud Minders
7.1
February 28, 1969
51 min
Captain Kirk races against time to acquire plague-fighting minerals from a world in the midst of a civil uprising against a grievous social class disparity.
Guest Stars:
Jeff Corey, Fred Williamson, Diana Ewing, Charlene Polite, Garth Pillsbury
22. The Savage Curtain
6.7
March 7, 1969
51 min
Aliens force Captain Kirk and First Officer Spock to join forces with "Abraham Lincoln" and "Surak" to battle villains in a contest of good vs. evil.
Guest Stars:
Barry Atwater, Lee Bergere, Phillip Pine, Janos Prohaska, Bart La Rue
23. All Our Yesterdays
7.8
March 14, 1969
51 min
Kirk, Spock and McCoy are trapped in two parts of another planet's past - a world threatened with destruction when its sun goes supernova.
Guest Stars:
Mariette Hartley, Johnny Haymer, Kermit Murdock, Ian Wolfe, Anna Karen
