
Star Trek Episode Rating Graph
Sep 1966 - Jun 1969

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Sep 1966 - Jun 1969
8.1
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Browse episode ratings trends for Star Trek. Simply click on the interactive rating graph to explore the best and worst of Star Trek's 79 episodes.
S1 Ep28
8.2
6th Apr 1967
Kirk and Spock must travel into the past in order to correct a change that will alter history.
S2 Ep15
8.2
29th Dec 1967
The Enterprise must protect a very important shipment of grain from both Klingons and some adorable creatures called tribbles.
S2 Ep4
8.1
6th Oct 1967
A transporter mishap swaps Captain Kirk and his companions with their evil counterparts in a parallel universe. In the so-called Mirror Universe, the Enterprise is a ship of the Terran Empire, an organization as evil as the United Federation of Planets is benevolent.
S1 Ep14
8.0
15th Dec 1966
Despite the earlier Romulan war, the Romulans have never been seen in person. The Enterprise, in pursuit of a Romulan aggressor, makes a discovery that causes suspicion about a senior crew member.
S2 Ep1
8.0
15th Sep 1967
First Officer Spock returns to his home world for a brutal Vulcan mating ritual.
S2 Ep6
8.0
20th Oct 1967
The starship Enterprise and its heavily-damaged sister ship, the USS Constellation, must work together to stop an alien planet-killing machine headed for the heart of Federation territory.
S2 Ep10
7.9
17th Nov 1967
The Enterprise must transport dignitaries to a peace conference, with an assassin on the loose.
S1 Ep22
7.9
16th Feb 1967
The Enterprise picks up a crew of genetic supermen from the 20th century... and their leader, Khan, plans to create a new empire.
S3 Ep2
7.8
27th Sep 1968
The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.
S1 Ep23
7.8
23rd Feb 1967
The Enterprise arrives at a planet to establish diplomatic relations and finds itself in the middle of a "peaceful" war that threatens to destroy the ship.
S1 Ep11
7.7
17th Nov 1966
Apparently summoned to Star Base 11, Kirk, Spock and McCoy visit a former Enterprise Commander, the paralyzed and horribly disfigured Christopher Pike. Uncharacteristically, Spock commandeers the Enterprise, then turns himself in for court martial.
S2 Ep24
7.7
8th Mar 1968
A skeleton Enterprise crew are assigned to test a revolutionary computer system that is given total control of the ship.
S1 Ep12
7.6
24th Nov 1966
Spock's court martial reveals the actions of Captain Pike on his previous visit to Talos IV, where the powerful Talosians tried to persuade Pike to breed with women provided for the purpose.
S3 Ep9
7.6
15th Nov 1968
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.
S1 Ep25
7.6
9th Mar 1967
Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.
S1 Ep19
7.5
26th Jan 1967
In a freak accident the Enterprise is sent back to 20th century Earth, and must find their way back without changing history.
S1 Ep26
7.5
23rd Mar 1967
The Federation and the Klingon Empire teeter on the brink of war as Kirk investigates Organia, a humble planet, inhabited by pacifists, that is unwittingly caught in the middle.
S1 Ep20
7.5
2nd Feb 1967
Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.
S1 Ep10
7.5
10th Nov 1966
Threatened by the sinister captain of a powerful alien vessel, Kirk claims that the Enterprise carries a powerful explosive which will destroy both ships. The move produces unexpected actions from the alien adversary.
S3 Ep23
7.4
14th Mar 1969
Kirk, Spock and McCoy are trapped in two parts of another planet's past - a world threatened with destruction when its sun goes supernova.
S1 Ep4
7.4
29th Sep 1966
An alien virus strips the enterprise crew of their inhibitions, causing chaos as each crew member is overcome by hidden emotions. Meanwhile, the Enterprise is being pulled inexorably into a nearby planet's gravity well.
S2 Ep3
7.4
29th Sep 1967
The crew of the USS Enterprise deals with an indestructible planet-destroying space probe.
S1 Ep24
7.4
2nd Mar 1967
The Enterprise crew try to rescue colonists from deadly radiation, but instead encounter strange alien spores that seem to offer paradise.
S2 Ep22
7.4
23rd Feb 1968
Beings from another galaxy commandeer the Enterprise in an attempt to return home.
S3 Ep4
6.0
11th Oct 1968
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.
S1 Ep27
6.1
30th Mar 1967
Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.
S3 Ep20
6.2
21st Feb 1969
The Enterprise picks up a group of space "hippies" looking for Eden.
S2 Ep23
6.3
1st Mar 1968
Captain Kirk must find the cure to a deadly disease and put an end to another Starfleet captain's cultural interference.
S3 Ep1
6.5
20th Sep 1968
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.
S2 Ep19
6.5
2nd Feb 1968
The crew of the Enterprise discovers Klingon interference in the development of a formerly peaceful planet and is forced to help maintain a balance of power.
S2 Ep7
6.6
27th Oct 1967
Two powerful aliens threaten the well-being of the Enterprise and her crew.
S3 Ep10
6.6
22nd Nov 1968
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.
S3 Ep12
6.6
6th Dec 1968
While visiting a doomed planet, the landing party is subject to torturous experiments by powerful aliens.
S3 Ep13
6.6
20th Dec 1968
The USS Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
S3 Ep17
6.6
24th Jan 1969
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.
S3 Ep3
6.6
4th Oct 1968
An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
S1 Ep8
6.7
27th Oct 1966
On a planet populated by children whose aging process has been slowed artificially. Kirk’s landing party members contract a virus that kills adults. Despite their violent attacks, Kirk is determined to help the children.
S2 Ep16
6.7
5th Jan 1968
Captain Kirk and his companions are abducted into slavery and trained to fight as gladiators for the gambling entertainment of three disembodied beings.
S3 Ep18
6.8
31st Jan 1969
Strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.
S3 Ep22
6.8
7th Mar 1969
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.
S3 Ep16
6.8
17th Jan 1969
A race of overpopulated aliens abduct Captain Kirk to solve their problem.
S2 Ep5
6.8
13th Oct 1967
The crew of the Enterprise visits a mysterious paradisical planet controlled by a computer that is served by the local inhabitants.
S1 Ep13
6.8
8th Dec 1966
Contacted by one of the other two witnesses to the crimes of mass murderer “Kodos the Executioner,” Kirk is persuaded that the criminal may be disguising himself as an actor in a traveling theatrical troupe.
S2 Ep11
6.9
1st Dec 1967
The crew of the Enterprise become entangled in a planet's tribal power struggle.
S2 Ep25
6.9
15th Mar 1968
The Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.
S1 Ep6
6.9
13th Oct 1966
Rescuing the crew of a ship from an asteroid belt, the Enterprise plays host to conman extraordinaire, the cunning Harry Mudd and his cargo: three beautiful women looking for suitors.
S2 Ep2
6.9
22nd Sep 1967
The crew of the Enterprise are held captive by an alien who turns out to be the Greek god Apollo.
S2 Ep14
6.9
22nd Dec 1967
A series of bizarre murders points to Mr. Scott as the prime suspect.
S1 Ep1
7.3
8th Sep 1966
Doctor Leonard “Bones” McCoy meets a former girlfriend when the enterprise brings supplies to a remote archaeological survey group. Still attractive to McCoy, the woman's current appearance hides a dark and deadly secret.
S1 Ep2
7.1
15th Sep 1966
Raised from boyhood by non-corporeal beings, 17 year old Charles Evans is picked up and transferred to the Enterprise. On board the ship, the teenager proves dangerously unable to wield his enormous psionic powers with maturity.
S1 Ep3
7.3
22nd Sep 1966
When Enterprise encounters a Force Field at the edge of the Galaxy, one of the crew members psionic abilities are accelerated to God like proportions causing him to become a powerful murderous being.
S1 Ep4
7.4
29th Sep 1966
An alien virus strips the enterprise crew of their inhibitions, causing chaos as each crew member is overcome by hidden emotions. Meanwhile, the Enterprise is being pulled inexorably into a nearby planet's gravity well.
S1 Ep5
7.2
6th Oct 1966
Split by a transporter malfunction into two beings with very different personalities, the resulting twin Captain Kirk proves that neither a purely evil nor a sweetly good captain can survive without the missing half.
S1 Ep6
6.9
13th Oct 1966
Rescuing the crew of a ship from an asteroid belt, the Enterprise plays host to conman extraordinaire, the cunning Harry Mudd and his cargo: three beautiful women looking for suitors.
S1 Ep7
7.3
20th Oct 1966
Helping nurse Christine Chapel search for her fiancé the enterprise finds a detached Dr. Kirby working on a plan to create Android duplicates of key figures, beginning with James Kirk.
S1 Ep8
6.7
27th Oct 1966
On a planet populated by children whose aging process has been slowed artificially. Kirk’s landing party members contract a virus that kills adults. Despite their violent attacks, Kirk is determined to help the children.
S1 Ep9
7.2
3rd Nov 1966
When a wild eyed maniac escaping from the Tantalus Penal Colony turns out to be one of the psychiatric staff, Kirk investigates the institution and discovers a chilling exercise in mind control.
S1 Ep10
7.5
10th Nov 1966
Threatened by the sinister captain of a powerful alien vessel, Kirk claims that the Enterprise carries a powerful explosive which will destroy both ships. The move produces unexpected actions from the alien adversary.
S1 Ep11
7.7
17th Nov 1966
Apparently summoned to Star Base 11, Kirk, Spock and McCoy visit a former Enterprise Commander, the paralyzed and horribly disfigured Christopher Pike. Uncharacteristically, Spock commandeers the Enterprise, then turns himself in for court martial.
S1 Ep12
7.6
24th Nov 1966
Spock's court martial reveals the actions of Captain Pike on his previous visit to Talos IV, where the powerful Talosians tried to persuade Pike to breed with women provided for the purpose.
S1 Ep13
6.8
8th Dec 1966
Contacted by one of the other two witnesses to the crimes of mass murderer “Kodos the Executioner,” Kirk is persuaded that the criminal may be disguising himself as an actor in a traveling theatrical troupe.
S1 Ep14
8.0
15th Dec 1966
Despite the earlier Romulan war, the Romulans have never been seen in person. The Enterprise, in pursuit of a Romulan aggressor, makes a discovery that causes suspicion about a senior crew member.
S1 Ep15
7.0
29th Dec 1966
When McCoy sees the White Rabbit from Alice in Wonderland, the crew begins to realize that the planet they are visiting seems to have the dangerous power to turn any thought into reality.
S1 Ep16
7.3
5th Jan 1967
Crash landing on a planet populated by hostile giants, the 7-man crew of the shuttlecraft Galileo find themselves unable to communicate with the enterprise or to escape the planet's atmosphere.
S1 Ep17
7.0
12th Jan 1967
Encountering an uncharted planet in an empty region of space, Kirk and his crew are entertained by Trelane, a playful being who lacks the self-control to wield his great psionic powers with discipline.
S1 Ep18
7.2
19th Jan 1967
With both their ships held captive by powerful beings, Kirk and the captain of the alien vessel are placed on an asteroid to fight for their lives and the lives of their crews.
S1 Ep19
7.5
26th Jan 1967
In a freak accident the Enterprise is sent back to 20th century Earth, and must find their way back without changing history.
S1 Ep20
7.5
2nd Feb 1967
Captain Kirk's career is at stake when he is put on trial for the loss of a crewman during an ion storm.
S1 Ep21
7.2
9th Feb 1967
The Enterprise encounters a seemingly peaceful civilization run by a "benevolent" being named Landru... who intends for them to join his people.
S1 Ep22
7.9
16th Feb 1967
The Enterprise picks up a crew of genetic supermen from the 20th century... and their leader, Khan, plans to create a new empire.
S1 Ep23
7.8
23rd Feb 1967
The Enterprise arrives at a planet to establish diplomatic relations and finds itself in the middle of a "peaceful" war that threatens to destroy the ship.
S1 Ep24
7.4
2nd Mar 1967
The Enterprise crew try to rescue colonists from deadly radiation, but instead encounter strange alien spores that seem to offer paradise.
S1 Ep25
7.6
9th Mar 1967
Kirk investigates a series of grisly murders on a mining planet that are the work of a seemingly hostile alien creature.
S1 Ep26
7.5
23rd Mar 1967
The Federation and the Klingon Empire teeter on the brink of war as Kirk investigates Organia, a humble planet, inhabited by pacifists, that is unwittingly caught in the middle.
S1 Ep27
6.1
30th Mar 1967
Kirk and Spock encounter an alien named Lazarus who claims to be from an anti-matter universe.
S1 Ep28
8.2
6th Apr 1967
Kirk and Spock must travel into the past in order to correct a change that will alter history.
S1 Ep29
7.3
13th Apr 1967
Kirk and the Enterprise must combat parasitic aliens threatening the lives of millions.
Space. The Final Frontier. The U.S.S. Enterprise embarks on a five year mission to explore the galaxy. The Enterprise is under the command of Captain James T. Kirk with First Officer Mr. Spock, from the planet Vulcan. With a determined crew, the Enterprise encounters Klingons, Romulans, time paradoxes, tribbles and genetic supermen led by Khan Noonian Singh. Their mission is to explore strange new worlds, to seek new life and new civilizations, and to boldly go where no man has gone before.
The first episode of Star Trek aired on September 08, 1966.
The last episode of Star Trek aired on June 03, 1969.
There are 79 episodes of Star Trek.
There are 3 seasons of Star Trek.
No.
Star Trek has ended.