Season 1

1 :01x01 - Beyond the Farthest Star

Stardate: 5221.3
The Enterprise discovers an ancient derelict alien ship orbiting a dead star. Upon investigation they discover that the crew destroyed themselves, rather than letting a malignant alien escape the dead star.
Guest Stars: James Doohan as Transporter Chief Kyle, Pod Ship Commander, Engineer, Malignant Alien
Director: Hal Sutherland

2 :01x02 - Yesteryear

An accident during a time travel excursion causes Spock to be replaced by an Andorian first officer. To restore the timeline, Spock must travel back to his childhood and make sure he survives a boyhood testing ritual.
Guest Stars: Mark Lenard as Sarek | Billy Simpson (2) as Young Spock | Keith Sutherland as Young Sepek | Majel Barrett as Amanda Grayson, Grey | James Doohan as Aleek-Om, Bates, Erikson, Guardian of Forever, Thelin, Vulcan Healer
Director: Hal Sutherland
Writer: D.C. Fontana

3 :01x03 - One of Our Planets is Missing

An enormous space-going entity consumes whole planetary systems... and a Federation colony is next in its path. The Enterprise must brave its antimatter interior and find a way to stop it.
Guest Stars: Majel Barrett as Cosmic Cloud | James Doohan as Robert Wesley
Director: Hal Sutherland
Writer: Marc Daniels

4 :01x04 - The Lorelei Signal

While exploring a mysterious section of space, the male crew are attracted by a mysterious signal. Kirk beams down with a landing party and encounters a race of seductive women, who harbor a dark secret.
Guest Stars: Majel Barrett as Theela | James Doohan as Lt. Carver | Nichelle Nichols as Davison, Dara, Enterprise Computer Voice
Director: Hal Sutherland

5 :01x05 - More Tribbles, More Troubles

The tribbles are back, and are causing problems for the Klingons.
Guest Stars: Stanley Adams as Cyrano Jones | David Gerrold as Korax | James Doohan as Koloth
Director: Hal Sutherland

6 :01x06 - The Survivor

The Enterprise rescues Carter Winston, a financier and philanthropist who has been missing for years. However, it soon becomes clear that Winston is harboring a secret of his own, and is allied with the Romulans.
Guest Stars: Ted Knight as Carter Winston | Nichelle Nichols as Lieutenant Ann Nored | James Doohan as Romulan Commander, Gabler | Majel Barrett as Computer Voice
Director: Hal Sutherland

7 :01x07 - The Infinite Vulcan

The Enterprise discovers a planet inhabited by a once vast plant-based civilization that have been reduced to a few survivors. They are now led by Dr. Keniclius, a human grown to giant proportions... and he wants Spock to join him.
Guest Stars: James Doohan as Dr. Keniclius 5, Agmar | Nichelle Nichols as Computer Voice
Director: Hal Sutherland

8 :01x08 - The Magicks of Megas-Tu

The Enterprise travels to the center of the galaxy only to discover themselves sucked into a dimension where the laws of time and space no longer apply, and "magic" functions for those capable of grasping its fundamentals.
Guest Stars: Ed Bishop as Asmodeus | James Doohan as Lucien | George Takei as Megan
Director: Hal Sutherland
Writer: Larry Brody

9 :01x09 - Once Upon a Planet

The Enterprise travels to the shore leave planet for some well-deserved rest and relaxation. The planet can create organic androids based on the crew's imagination, but they soon discover that the planet has a hostile mind of its own.
Guest Stars: George Takei as Amusement Park Computer | James Doohan as Gabler, White Rabbit | Nichelle Nichols as Alice | Majel Barrett as Queen of Hearts
Director: Hal Sutherland

10 :01x10 - Mudd's Passion

Harcourt Fenton Mudd returns with a love potion which he claims can cause any male and female to fall in love. He inadvertently releases it into the Enterprise's ventilation system and they discover that his claims are true.
Guest Stars: Roger C. Carmel as Harry Mudd | Nichelle Nichols as Female Ursinoid Miner | Majel Barrett as Lora | James Doohan as Female Ursinoid Miner, Human Miner
Director: Hal Sutherland

11 :01x11 - The Terratin Incident

The Enterprise responds to an old-style distress signal from an unknown "Terratin" colony, and follow it to its source: an uninhabited planet about to shatter from internal stress. However, a mysterious beam strikes the ship and the crew begins to shrink... and shrink...
Guest Stars: James Doohan as Mendent of Terratin, Gabler | Nichelle Nichols as Mess Officer Briel
Director: Hal Sutherland

12 :01x12 - The Time Trap

The Enterprise is sent on a mission to explore a "Bermuda Triangle of Space," only to find itself and a Klingon ship trapped in a timeless piece of eternity inhabited by other lost ships. The two ships must work together before their only exit back to real space closes for good.
Guest Stars: James Doohan as Gabler, Bell, Captain Kor, Kaz, Xerius | Nichelle Nichols as Devna, Magen | George Takei as Commander Kuri, Klingon #1
Director: Hal Sutherland
Writer: Joyce Perry

13 :01x13 - The Ambergris Element

While exploring an aquatic planet, Kirk and Spock are lost at sea. They are later found... but have been transformed into amphibious life forms. Now they must track down the planet's mysterious inhabitants and find a cure, or be left to live as freaks in the Federation.
Guest Stars: David Gerrold as Nephro | James Doohan as Lieutenant Clayton, Domar, Cadmar, Lemus, Aquan Males | Majel Barrett as Rila, Aquan Females
Director: Hal Sutherland

14 :01x14 - The Slaver Weapon

Spock, Sulu, and Uhura are delivering a Slaver stasis box by shuttlecraft when they detect another box. Following the signal, they soon discover that a Kzinti privateer has set a trap. Capturing the Enterprise crew, they discover their box holds a rare find, a shape-shfiting Slaver weapon. Now Spock and the others must keep the Kzinti from returning to their government with the weapon.
Guest Stars: Majel Barrett as Slaver Device | James Doohan as Chuft Captain, Kzin Telepath, Kzin Flyer
Director: Hal Sutherland
Writer: Larry Niven

15 :01x15 - The Eye of the Beholder

The Enterprise go looking for a lost expedition and a landing party finds the missing crew: trapped in an alien zoo in which they themselves are soon taken as prisoners. Now they must somehow establish communications with their evolved slug-like captors who think of them as primitive animals.
Guest Stars: James Doohan as Lieutenant Commander Tom Markel, Lactrans | Majel Barrett as Randi Bryce
Director: Hal Sutherland

16 :01x16 - The Jihad

Kirk and Spock are chosen by a mysterious race to lead an expedition of alien specialists to an "insane planet" and recover a missing artifact, the Soul of Alar, before the avian Skorr go on a galactic jihad.
Guest Stars: David Gerrold as EM/3/Green | James Doohan as Tchar, Sord | Majel Barrett as Lara, Vedalan
Director: Hal Sutherland
Classification: Animation
Genre: Animation General | Sci-Fi
Status: Canceled/Ended
Network: NBC ( USA)
Airs: Saturdays
Runtime: 30 Minutes
Premiere: September 08, 1973
Ended: October 12, 1974
This guide is currently edited by:
Gadfly (Challenge)