Season 1
01. Beyond the Farthest Star
Stardate: 5521.3
In orbit around a dead star, the Enterprise comes across a huge starship inhabited by a parasitic life form that threatens the entire ship.
02. Yesteryear
Stardate: 5373.4
Spock travels back in time to prevent his death as a young Vulcan.
03. One of Our Planets Is Missing
Stardate: 5371.3
The crew of the Enterprise races to find a way to stop a cloud from destroying inhabited planets.
04. The Lorelei Signal
Stardate: 5483.7
Female crew members must take over the Enterprise when the men are incapacitated by a race of sirens.
05. More Tribbles, More Troubles
Stardate: 5392.4
Cyrano Jones introduces tribbles that cannot reproduce.
06. The Survivor
Stardate: 5143.3
The Enterprise finds a long-lost explorer.
07. The Infinite Vulcan
Stardate: 5554.4
A race of plant people, and their master, have a plan to force peace onto the galaxy.
08. The Magicks of Megas-tu
Stardate: 1254.4
At the center of the galaxy, the Enterprise discovers a race of powerful aliens.
09. Once Upon a Planet
Stardate: 5591.2
Kirk returns to the "shore leave" planet, but it's not as peaceful as it was when they last saw it.
10. Mudd's Passion
Stardate: 4978.5
Space con artist Harry Mudd returns, selling a fake love potion.
11. The Terratin Incident
Stardate: 5577.3
The Enterprise crew begins to shrink after radiation exposure.
12. The Time Trap
Stardate: 5267.6
The Enterprise crew must work with Klingons to escape from a pocket universe.
13. The Ambergris Element
Stardate: 5499.9
While exploring the planet Argo, Kirk and Spock are turned into water breathers.
14. The Slaver Weapon
Stardate: 4187.3
Spock, Sulu, and Uhura discover a time capsule from an ancient and technologically advanced race. However, it draws some unwanted attention.
15. The Eye of the Beholder
Stardate: 5501.2
Telepathic aliens put Kirk, Spock and McCoy in a zoo.
16. The Jihad
Stardate: 5683.1
Kirk and Spock are recruited for a heist to recover a stolen relic, which if not recovered could spark an galactic jihad.