The era of the animated Star Trek series

Events of the animated Star Trek series (series original run from 1973-1975, two seasons).

 According to long standing fan tradition, this series constitutes the fourth year of the Enterprise's five year mission.  Note: The events of the animated series are widely held to not be part of "official" Star Trek.   

April 2269

Enterprise moors at starbase for a minor refit and a crew rotation. Arex and M'Ress are assigned to the Starship Enterprise. Arex takes over as ship's Navigator when Ensign Pavel Chekov leaves the ship at Starbase 2. (speculation based on changes between "Turnabout Intruder" and "Beyond the Farthest Star")

May 2269    

Beyond the Farthest Star        

Stardate 5221.3

The Enterprise crew beam aboard a huge derelict spaceship from an insect race, and learn that the ancient vessel still carries malevolent entity.

May 2269    

Yesteryear        

Stardate 5373.4

Spock emerges from the Guardian of Forever to discover that history has recorded that he died at age 7 undergoing the Kahs-wan ordeal. Spock travels back to in the past in an attempt to save his own life.

June 2269    

One of Our Planets is Missing            

Stardate 5371.3

The Enterprise encounters a cloud creature that feeds on the energy of the planets that lie in its path. Spock mind melds with the entity and tells it that it is killing life and he persuades it to return to its place of origin.
 

June 2269     

The Lorelei Signal

Stardate 5483.7

Investigating a sector of space where starships have disappeared every 27 years, the Enterprise finds a race of beautiful women who survive by drawing the energy from the male members of the ships that they have lured to their planet.

July 2269    

More Tribbles, More Troubles

Stardate 5392.4

The Enterprise again crosses paths with Cyrano Jones, who this time has tribbles that do not breed, but instead grow to a tremendous size.

July 2269     

The Survivor

Stardate 5143.3

Patrolling near the Neutral Zone, the Enterprise finds a ship manned by Carter Winston, a Federation citizen who has been missing for 5 years. Winston turns out to really be a Vendorian, an alien species that can transform its shape at will.

August 2269    The Infinite Vulcan 

Stardate 5554.4

On the recently-discovered planet Phylos, the Enterprise crew meets Dr. Keniclius, a scientist who survived Earth's Eugenic Wars. The Phylosians abduct Spock so that Keniclius can make a giant clone of him with the intention of forcing peace on the galaxy.
 

August 2269     

The Magicks of Megas-Tu

Stardate 1254.4

While exploring near the center of the galaxy, the Enterprise stops at Megas-Tu, a planet where magic and witchcraft are the norm, and their guide is Lucien, who is Lucifer of Earth mythology.
 

September 2269

Once Upon a Planet                                        

Stardate 5591.2

Arriving at the "amusement park" planet for some relaxation, the Enterprise finds that the planet's keeper is now dead and the untended machinery is constructing dangerous images from the crew members' thoughts.
 

September 2269

Mudd’s Passion 

Stardate 4978.5

Harry Mudd is once again apprehended and incarcerated by the Enterprise crew, after trying to sell love crystals. Mudd abducts Nurse Chapel and escapes to a rocky planet in a stolen Enterprise shuttle.
 

October 2269    

Terratin Incident, The         

Stardate 5577.3

While exploring a burnt-out supernova, the Enterprise finds a miniature city called Terratin, and soon discover that it is a lost Earth colony that has mutated because of the supernova's radiation and that the Enterprise crew is beginning to shrink also.
 

October 2269      

Time Trap 

Stardate 5267.2

Caught in an ion storm, the Enterprise and a Klingon battle cruiser are drawn into a time warp called the Delta Triangle and must cooperate in order to escape it.
 

November 2269    

Ambergris Element                  

Stardate 5499.9

While exploring the planet Argo, Kirk and Spock are made into water breathers by an undersea race, and the venom of a deadly sea snake is the only antidote to return them to their normal selves.
 

November 2269        

Slaver Weapon                  

Stardate 4187.3                                 

The shuttlecraft Copernicus lands on a planet to investigate a stasis box from the extinct Slaver race; but the crew is captured by Kzinti raiders who hope to find a super weapon in the stasis box.

December 2269    

The Eye of the Beholder

Stardate 5501.2

Beaming down to a planet to search for the crew of the missing ship Ariel, the Enterprise crew is captured by a race of super intelligent slug creatures and become part of a zoo collection.
 

December 2269       

Jihad                                                                            

Stardate 5683.1

Kirk and Spock join a party of aliens to search for and recover a priceless artifact, the loss of which may cause a galactic holy war; but they soon learn that one of the party is a saboteur.
 

(SECOND SEASON - January to April 2270)

January 2270         

Pirates of Orion

Stardate 6334.1

Spock contracts a disease that is fatal to Vulcans, and Orion pirates make it difficult for the Enterprise  to rendezvous with the S.S. Huron, a freighter that is carrying the only known antidote.

January 2270

   Bem                                                                                                

Stardate 7403.6

On a series of exploratory missions with Commander Ari bn Bem, a representative from the newly-contacted planet Pandro, the Enterprise encounters a planet of primitive natives under the guardianship of a noncorporeal being.

February 2270           

Practical Joker    

Stardate 3183.3

While trying to escape from three Romulan warships, the Enterprise passes through a gaseous cloud that affects the ship's computer and turns it into a dangerous practical joker.
 

March 2270

  Albatross                                                                             

Stardate 5275.6

Returning to a planet where McCoy headed a mass-inoculation program against Saurian virus 19 years earlier, the Enterprise  crew find that McCoy is wanted for starting a plague that killed most of the planet's population following that earlier visit.

April 2270    

How Shaper Than a Serpent’s Tooth

Stardate 6063.4

The Enterprise encounters a ship in the shape of a winged serpent, which turns out to be Kukulkan, a god of ancient Mayan-Aztec legend. Kukulkan is actually a very long-lived benevolent entity who wants the humans to worship him just as the Mayans and Aztecs did.
 

April 2270  

The Counter-Clock Incident                                                       

Stardate 6770.3

While transporting Commodore Robert April, the first captain of the U.S.S. Enterprise, and his wife to Babel, the Enterprise plunges through a nova and into an alternate universe where everything is backwards, and the crew begins to grow younger at an accelerated rate.   

(The Counter-Clock Incident was the last new episode of the animated Star Trek to be broadcast)

The Enterprise travels to the planet Babel, however Ambassador Robert April decided not to retire from Starfleet at that time.  

April 2270